21
Find the odd number / letters / word from the given alternative:
Answer & Solution
Answer: Option
A
Solution:
In all other pairs, the second number is obtained by multiplying the square of the first number by a prime number.
Thus, 108 = 62 × 3, 75 = 52 × 3, 99 = 32 × 11.
Thus, 108 = 62 × 3, 75 = 52 × 3, 99 = 32 × 11.