OC Logical Thinking and Problem Solving 2

Question 1

A shop has a 'buy 2 get 1 free' offer. If items cost $9 each and you want 6 items, how much do you pay?

Accepted Answer

$36

Answer

With buy 2 get 1 free, you pay for 4 out of 6 items: 4 × $9 = $36.

Question 2

Sam thinks of a number, doubles it, adds 10, and gets 30. What was the original number?

Accepted Answer

10

Answer

Work backwards: 30 − 10 = 20, then 20 ÷ 2 = 10.

Question 3

If the code for CAT is 3-1-20 (C=3, A=1, T=20), what is the code for DOG?

Accepted Answer

4-15-7

Answer

D=4, O=15, G=7, so the code is 4-15-7.

Question 4

A 10-litre tank is one-quarter full. How many litres are needed to fill it?

Accepted Answer

7.5

Answer

One-quarter of 10 = 2.5 litres already in the tank; 10 − 2.5 = 7.5 litres needed.

Question 5

Alex, Ben, and Carla each have a different pet: a cat, a dog, and a fish. Alex does not have the cat. Ben does not have the dog. Carla has the fish. Who has the cat?

Accepted Answer

Ben

Answer

Carla has the fish; Alex cannot have the cat, so Alex has the dog and Ben has the cat.

OC - Opportunity Class Test Practice Test

OC - Opportunity Class Test Practice Test

OC Logical Thinking and Problem Solving 2