Find the missing number (x) in the sequence 0,0,3,7,x,26

Question

Find the missing number (x) in the sequence 0,0,3,7,x,26

A. 15

B. 17

C. 8

D. 25

Answer: C. 8

Solution:

1² − 1 = 0,

1³ − 1 = 0,

2² − 1 = 3,

2³ − 1 = 7,

3² − 1 = 8,

3³ − 1 = 26

Hence, The answer is 8.

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