Question discussion

If 1 ★ 2 = 5, 2 ★ 3 = 13 and 3 ★ 4 = 25, then 4 ★ 5 = ?

1212Medium DSSSB TGT Computer Science 0 replies 1 views

Correct answer: A

Explanation

a ★ b = a² + b²: 1 + 4 = 5, 4 + 9 = 13, 9 + 16 = 25, so 4 ★ 5 = 16 + 25 = 41.

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