---
title: Olympiad: best buys and change at the till ★★★ — how Mova does on the tests · Money
description: Lesson 41 of the money course of Mova's primary school: 2 of 11 tests right, exam 2 of 4, every question with the options, the student's choice, the right answer and why it chose.
---

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# Olympiad: best buys and change at the till ★★★

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**Tests:** 2 of 11 right · **Exam:** 2 of 4 right · **Kind:** ★★★ · **Understood:** 1 of 15 · **Run:** 2026-10-18, commit `f3c23ea72`

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Lesson 41 of the money course of Mova's primary school, as Mova's small model took its tests: it had read this lesson and the ones before it and learned from their exercises. Each test shows the options in the order the student saw them, its choice, the right answer, the score of every option and why it chose. The lesson itself, sentence by sentence with trees and pragmatics: [the lesson in the corpora](https://md.mova.elamur.ai/free/en/corpora/school/money/41-olympiad-best-buys-and-change-at-the-till/).

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Every question of this lesson and each of its options parsed by Mova, with trees and pragmatics: [the lesson's questions in the corpora](https://md.mova.elamur.ai/free/en/corpora/questions/money/41-olympiad-best-buys-and-change-at-the-till/).

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### Test 1 · ★★★ · wrong ✗ {#t1}

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★★★ Kai from Peckham: "bruv, pens are 5 for £2 or 2 for 90p, I need 7 innit." What is the cheapest way to get at least 7 pens?

- **1.** Four packs of 2, for £3.60 — **← Mova's choice** · no support
- **2.** Three packs of 2, for £2.70 — no support
- **3.** Two packs of 5, for £4 — no support
- **4.** One pack of 5 and one of 2, £2.90 — **✓ the right answer** · no support

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**Why:** No option found support in what it remembers, so it guessed: it took the first option shown. · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/money/41-olympiad-best-buys-and-change-at-the-till/t1/)

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### Test 2 · ★★★ · wrong ✗ {#t2}

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★★★ Jade: "that queue was a mile long, took forever, anyway paid £10 for £7.40 of stuff and she gave me £2.60. Sound?" Is the change right?

- **1.** No, it should be £3.40 — **← Mova's choice** · no support
- **2.** Yes, £2.60 is right — **✓ the right answer** · no support
- **3.** No, it should be £2.40 — no support
- **4.** No, it should be £3.60 — no support

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**Why:** No option found support in what it remembers, so it guessed: it took the first option shown. · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/money/41-olympiad-best-buys-and-change-at-the-till/t2/)

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### Test 3 · ★★★ · wrong ✗ {#t3}

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★★★ Ollie: "Nan gave me £5 - no wait, a tenner - and I got a mag for £3.20." What change did he get?

- **1.** £1.80 — **← Mova's choice** · no support
- **2.** £6.20 — no support
- **3.** £6.80 — **✓ the right answer** · no support
- **4.** £7.20 — no support

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**Why:** No option found support in what it remembers, so it guessed: it took the first option shown. · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/money/41-olympiad-best-buys-and-change-at-the-till/t3/)

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### Test 4 · ★★★ · right ✓ {#t4}

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★★★ Zoe: "half off then another quarter off, that's three quarters off, so the £40 jacket's a tenner, no cap." Is she right?

- **1.** No: half leaves £20, then a quarter off leaves £15 — **← Mova's choice** · **✓ the right answer** · score 8
- **2.** Yes: three quarters off £40 really is £10 — no support
- **3.** No: it comes to £30, only a quarter off — no support
- **4.** No: it all comes to £25, a quarter off £40 — no support

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**Why:** It took the question to ask which statement is true. It chose option 1 with score 8, the only option with support. Its support: lesson 41, line 3: «Picture a jacket at £40 with a sign "half price, then a further quarter off": half leaves £20, and a quarter of £20 is £5, so you pay £15, not the £10 that "th…», reached through the remembered sentence the question matched. What matched: the same action «leave» (+4); the same doer «half» (+4). · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/money/41-olympiad-best-buys-and-change-at-the-till/t4/)

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### Test 5 · ★★★ · wrong ✗ {#t5}

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★★★ Dad looks at "2 for £5" on cereal that is £2.30 a box and says, "Hmm, not ideal." What does he really mean?

- **1.** The deal costs 70p more than singles — **← Mova's choice** · no support
- **2.** The deal costs exactly the same as singles — no support
- **3.** The deal costs 40p more than two single boxes — **✓ the right answer** · no support
- **4.** The deal is just a bit cheaper, by 40p — no support

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**Why:** No option found support in what it remembers, so it guessed: it took the first option shown. · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/money/41-olympiad-best-buys-and-change-at-the-till/t5/)

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### Test 6 · ★★★ · wrong ✗ {#t6}

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★★★ Mia in Perth: "servo's got drinks $3 each or 4 for $10, I need 5, eh." What is the cheapest for exactly 5?

- **1.** $12.50 — **← Mova's choice** · no support
- **2.** $15 — no support
- **3.** $10 — no support
- **4.** $13 — **✓ the right answer** · no support

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**Why:** No option found support in what it remembers, so it guessed: it took the first option shown. · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/money/41-olympiad-best-buys-and-change-at-the-till/t6/)

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### Test 7 · ★★★ · wrong ✗ {#t7}

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★★★ A Geordie gran: "which voucher's the canny one for the £20 toy, pet?" Which saves the most?

- **1.** A tenth off, saving £10 — **← Mova's choice** · no support
- **2.** A fifth off, saving £5 — no support
- **3.** £4 off, saving £4 — no support
- **4.** A quarter off, saving £5 — **✓ the right answer** · no support

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**Why:** No option found support in what it remembers, so it guessed: it took the first option shown. · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/money/41-olympiad-best-buys-and-change-at-the-till/t7/)

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### Test 8 · ★★★ · wrong ✗ {#t8}

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★★★ Finn: "I'm skint, mate, give us 85p back in the fewest coins." How many coins is that?

- **1.** 2 — **← Mova's choice** · no support
- **2.** 4 — **✓ the right answer** · no support
- **3.** 5 — no support
- **4.** 3 — no support

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**Why:** No option found support in what it remembers, so it guessed: it took the first option shown. · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/money/41-olympiad-best-buys-and-change-at-the-till/t8/)

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### Test 9 · ★★★ · right ✓ {#t9}

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★★★ Megan from Cardiff: "Shopping was £6.35, I paid with £20 and she gave me £14.65, lush!" What really happened?

- **1.** She got £1 too much and should give it back — **← Mova's choice** · **✓ the right answer** · no support
- **2.** She got exactly the right change — no support
- **3.** She got 35p too much and can keep the rest — no support
- **4.** She got £1 too little and should ask for it — no support

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**Why:** No option found support in what it remembers, so it guessed: it took the first option shown. · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/money/41-olympiad-best-buys-and-change-at-the-till/t9/)

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### Test 10 · ★★★ · wrong ✗ {#t10}

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★★★ Callum from Glasgow: "Wee bag's 200 g for 90p, big bag's 500 g for £2.40, the big one's aye cheaper." Is he right?

- **1.** Yes: big bags are always the cheaper ones — **← Mova's choice** · no support
- **2.** Yes: the big bag is cheaper at 45p per 100 g — no support
- **3.** No: the wee bag is 45p per 100 g, the big one 48p — **✓ the right answer** · no support
- **4.** They both work out at 48p per 100 g — no support

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**Why:** Nothing it remembers matched the question, so it guessed: it took the first option shown. · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/money/41-olympiad-best-buys-and-change-at-the-till/t10/)

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### Test 11 · ★★★ · wrong ✗ {#t11}

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★★★ Ava: "both books are £8, buy one get the second half price, so I pay £8, bussin'." What does she really pay?

- **1.** £4 — **← Mova's choice** · no support
- **2.** £12 — **✓ the right answer** · no support
- **3.** £8 — no support
- **4.** £16 — no support

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**Why:** No option found support in what it remembers, so it guessed: it took the first option shown. · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/money/41-olympiad-best-buys-and-change-at-the-till/t11/)

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### Exam question 1 · formal language · right ✓ {#e1}

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It is given that a coat of forty pounds is reduced by one half and thereafter by one quarter of the reduced price. Ascertain the final price.

- **1.** Fifteen pounds — **← Mova's choice** · **✓ the right answer** · no support
- **2.** Ten pounds — no support
- **3.** Five pounds — no support
- **4.** Twenty-five pounds — no support

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**Why:** No option found support in what it remembers, so it guessed: it took the first option shown. · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/money/41-olympiad-best-buys-and-change-at-the-till/e1/)

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### Exam question 2 · formal language · wrong ✗ {#e2}

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Determine the least number of coins by which change of two pounds eighty pence may be tendered.

- **1.** Five — **← Mova's choice** · no support
- **2.** Six — no support
- **3.** Three — no support
- **4.** Four — **✓ the right answer** · no support

<!-- .why -->
**Why:** No option found support in what it remembers, so it guessed: it took the first option shown. · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/money/41-olympiad-best-buys-and-change-at-the-till/e2/)

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### Exam question 3 · formal language · right ✓ {#e3}

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Of cartons of 250 millilitres at forty pence, a bottle of one litre at one pound fifty and a bottle of two litres at three pounds twenty, identify the cheapest per litre.

- **1.** The bottle of one litre — **← Mova's choice** · **✓ the right answer** · no support
- **2.** The two-litre bottle — no support
- **3.** All three are equal — no support
- **4.** The cartons — no support

<!-- .why -->
**Why:** No option found support in what it remembers, so it guessed: it took the first option shown. · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/money/41-olympiad-best-buys-and-change-at-the-till/e3/)

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### Exam question 4 · formal language · wrong ✗ {#e4}

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It is given that five pounds is deducted for every hundred pounds of the price of a television of three hundred pounds. Ascertain the saving.

- **1.** Five pounds — **← Mova's choice** · no support
- **2.** Fifteen pounds — **✓ the right answer** · no support
- **3.** Three pounds — no support
- **4.** Thirty-five pounds — no support

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**Why:** No option found support in what it remembers, so it guessed: it took the first option shown. · [the question and its options parsed, with trees and pragmatics](https://md.mova.elamur.ai/free/en/corpora/questions/money/41-olympiad-best-buys-and-change-at-the-till/e4/)

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- ← previous: [40. Gambling and honesty with change](https://md.mova.elamur.ai/free/en/school-run/money/40-gambling-and-honesty-with-change/)
- next →: [42. Olympiad: saving plans and offers too good to be…](https://md.mova.elamur.ai/free/en/school-run/money/42-olympiad-saving-plans-and-offers-too-good-to-be-true/)
- ↑ back to [Money](https://md.mova.elamur.ai/free/en/school-run/money/)