# Complete The Alternative Series :

Answered

1. 0, 7, 26, 63, ?

(a) 123 (b) 124 (c) 87 (d) 96

Best answer

**Answer: (b) 124**

**Explanation:-**

1^{3} – 1 = 1 x 1 x 1 – 1

= 1 – 1 = 0

2^{3} – 1 = 2 x 2 x 2 – 1

= 8 – 1 = 7

3^{3} – 1 = 3 x 3 x 3 – 1

= 27 – 1 = 26

4^{3} = 4 x 4 x 4 – 1

= 64 – 1

= 63

Same as,

5^{3} = 5 x 5 x 5 – 1

= 125 – 1 = 124

Hence, the answer is (b) 124.