GCAT Logical Deduction Problems 2

Question 1

All doctors are scientists. Some scientists are artists. Which conclusion must be true?

Accepted Answer

Some scientists are doctors

Answer

Since all doctors are scientists, at least some scientists must be doctors.

Question 2

If it is not raining, Maria goes jogging. Maria did not go jogging today. What can you conclude?

Accepted Answer

It is raining today

Answer

By contrapositive, if Maria did not jog, then it must be raining.

Question 3

Five students — A, B, C, D, E — sit in a row. A is to the left of B. C is to the right of D. B is to the left of D. Who can be in the middle (3rd position)?

Accepted Answer

D

Answer

The order A-B-D is forced, and C is to D's right, so a valid arrangement is A-B-D-C with E anywhere, placing D third.

Question 4

No reptiles are warm-blooded. All snakes are reptiles. Which statement is definitely true?

Accepted Answer

No snakes are warm-blooded

Answer

Since snakes are reptiles and no reptiles are warm-blooded, no snakes can be warm-blooded.

Question 5

A store offers a discount only if a customer spends more than $100 OR uses a coupon. Tom received a discount but did not use a coupon. What must be true?

Accepted Answer

Tom spent more than $100

Answer

Since the coupon condition was not met, the other condition (spending over $100) must have been satisfied.

GCAT - General Cognitive Ability Test Practice Test

GCAT - General Cognitive Ability Test Practice Test

GCAT Logical Deduction Problems 2