Unit 12 · Multi-Step Conditional Reasoning

Four Shops, Two Attributes — Nathan's Best Choice

Lesson 4 of 30

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About this lesson

Four shops sell the same TV at different prices. Nathan wants the fastest delivery but can't afford the priciest. Two ordered lists — one for price, one for speed — are all you need to find his answer.

Chapters

0:00Introduction
0:20Question
1:10Strategy
1:42Step 1: Build the price order — eliminate Hughes Home
2:16Step 2: Build the speed order — Brennan Audio wins
2:53Correct answer

Question

Four online shops – Hughes Home, KX Hi-Fi, Brennan Audio, and Roberts Electrical – are all selling the same model of television but at different prices. Nathan needs to get one as quickly as possible but can’t afford the most expensive.

KX Hi-Fi takes longer to deliver than Brennan Audio, but is faster than Roberts Electrical. Roberts Electrical is cheaper than Brennan Audio. KX Hi-Fi costs more than Brennan Audio, but is cheaper than Hughes Home.

Which of the four shops will Nathan choose?

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