---
title: Olympiad: logic traps and if-then ★★★ — the lesson's questions with trees and pragmatics · World
description: The 15 test and exam questions of lesson 193 «Olympiad: logic traps and if-then ★★★» of the world course of Mova's primary school, each with its options, Mova's choice and the right answer, every sentence with its dependency tree and pragmatics.
---

<!-- md -->
[Mova](https://md.mova.elamur.ai/free/en/) · [this page in HTML](https://mova.elamur.ai/free/en/corpora/questions/world/193-olympiad-logic-traps-and-if-then/)

<!-- crumbs -->
[home](https://md.mova.elamur.ai/free/en/) / [corpora](https://md.mova.elamur.ai/free/en/corpora/) / [questions](https://md.mova.elamur.ai/free/en/corpora/questions/) / [World](https://md.mova.elamur.ai/free/en/corpora/questions/world/) / Olympiad: logic traps and if-then ★★★

# Olympiad: logic traps and if-then ★★★

<!-- .vabout -->
The 15 questions of lesson 193 «Olympiad: logic traps and if-then ★★★» of the world course of Mova's primary school with their options, 97 sentences, every one parsed by Mova with its syntax tree and pragmatics. How the student did on them: [the lesson at school](https://md.mova.elamur.ai/free/en/school-run/world/193-olympiad-logic-traps-and-if-then/).

<!-- list vl: b t e -->
- [t1](https://md.mova.elamur.ai/free/en/corpora/questions/world/193-olympiad-logic-traps-and-if-then/t1/) — Ethan: "Mate, the rule's 'vowel means even on the back'. I flipped the 4 and there's a K. Rule's broken!" Is he right? — right ✓ · ★★★
- [t2](https://md.mova.elamur.ai/free/en/corpora/questions/world/193-olympiad-logic-traps-and-if-then/t2/) — Ruby from London: "There's no swimming today, bruv, so it's defo Tuesday, innit?" The rule "if Tuesday, then swimming" is always kept. What's true? — wrong ✗ · ★★★
- [t3](https://md.mova.elamur.ai/free/en/corpora/questions/world/193-olympiad-logic-traps-and-if-then/t3/) — A man on the island grins: "I am a liar." Ellie: "Sus. That's impossible here." Why is she right? — wrong ✗ · ★★★
- [t4](https://md.mova.elamur.ai/free/en/corpora/questions/world/193-olympiad-logic-traps-and-if-then/t4/) — Jamie from Newcastle: "Howay, Ann's taller than Ben and Cal's taller than Ben, so Ann's the tallest, the gadgie said." What is true? — wrong ✗ · ★★★
- [t5](https://md.mova.elamur.ai/free/en/corpora/questions/world/193-olympiad-logic-traps-and-if-then/t5/) — Dad: "Not all of you tidied up." Leo: "So none of us tidied, mid effort all round." What did Leo get wrong? — wrong ✗ · ★★★
- [t6](https://md.mova.elamur.ai/free/en/corpora/questions/world/193-olympiad-logic-traps-and-if-then/t6/) — Grandpa from Pittsburgh: "Yinz know some cats are black and some black things are bats, so some cats are bats." What's the best reply? — wrong ✗ · ★★★
- [t7](https://md.mova.elamur.ai/free/en/corpora/questions/world/193-olympiad-logic-traps-and-if-then/t7/) — Mason: "I've got a ticket and they still didn't let me in! The sign said only ticket holders get in!" What did the sign promise? — wrong ✗ · ★★★
- [t8](https://md.mova.elamur.ai/free/en/corpora/questions/world/193-olympiad-logic-traps-and-if-then/t8/) — Lily: "Five heads in a row! Tails is SO due now, it's basically guaranteed." What is true? — right ✓ · ★★★
- [t9](https://md.mova.elamur.ai/free/en/corpora/questions/world/193-olympiad-logic-traps-and-if-then/t9/) — Mum: "So it's 'not untrue' that you ate the whole cake?" Max: "Technically I didn't say I ate it!" What did Max really admit? — wrong ✗ · ★★★
- [t10](https://md.mova.elamur.ai/free/en/corpora/questions/world/193-olympiad-logic-traps-and-if-then/t10/) — Aisha from Glasgow: "Ken what, every bird can fly, no exceptions." Her friend points at a penguin at the zoo. How many such birds does the friend need? — wrong ✗ · ★★★
- [t11](https://md.mova.elamur.ai/free/en/corpora/questions/world/193-olympiad-logic-traps-and-if-then/t11/) — Owen, at a fruit stall: "All three labels are wrong? Then I'll have to open all three boxes, obviously." What's the clever way? — wrong ✗ · ★★★
- [e1](https://md.mova.elamur.ai/free/en/corpora/questions/world/193-olympiad-logic-traps-and-if-then/e1/) — It is given that the proposition "if it is Tuesday, swimming takes place" holds, and that no swimming takes place today. Determine what may be concluded. — right ✓ · exam
- [e2](https://md.mova.elamur.ai/free/en/corpora/questions/world/193-olympiad-logic-traps-and-if-then/e2/) — Of four cards showing A, K, 4 and 7, identify those which must be turned in order to test the rule that a vowel on one face implies an even number on the other. — wrong ✗ · exam
- [e3](https://md.mova.elamur.ai/free/en/corpora/questions/world/193-olympiad-logic-traps-and-if-then/e3/) — State the proposition which is the negation of "all the children attended". — wrong ✗ · exam
- [e4](https://md.mova.elamur.ai/free/en/corpora/questions/world/193-olympiad-logic-traps-and-if-then/e4/) — On an island whose inhabitants either always speak truly or always speak falsely, identify the statement which no inhabitant can make. — wrong ✗ · exam

<!-- pn -->
- ← previous: [192. Olympiad: time and calendar puzzles ★★★](https://md.mova.elamur.ai/free/en/corpora/questions/world/192-olympiad-time-and-calendar-puzzles/)
- next →: [194. Olympiad: everyday reasoning ★★★](https://md.mova.elamur.ai/free/en/corpora/questions/world/194-olympiad-everyday-reasoning/)
- ↑ back to [World](https://md.mova.elamur.ai/free/en/corpora/questions/world/)

