COOP Test of Sequences 2

Question 1

What comes next in the sequence? 3, 6, 12, 24, ___

Accepted Answer

48

Answer

Each term is doubled: 3×2=6, 6×2=12, 12×2=24, 24×2=48.

Question 2

Which letter comes next? A, C, E, G, ___

Accepted Answer

I

Answer

The sequence skips every other letter: A, C, E, G, I.

Question 3

What number is missing? 100, 81, 64, ___, 36

Accepted Answer

49

Answer

These are perfect squares in descending order: 10², 9², 8², 7², 6².

Question 4

Complete the sequence: 1, 4, 9, 16, 25, ___

Accepted Answer

36

Answer

These are perfect squares: 1², 2², 3², 4², 5², 6²=36.

Question 5

What comes next? Z, X, V, T, ___

Accepted Answer

R

Answer

The sequence moves backward skipping one letter each time: Z, X, V, T, R.

COOP Exam Practice Test