Question

Three of the following are alike in a certain way. Find the one which is different from others.

• A. $3:17$
• B. $5:26$
• C. $8:82$
• D. $9:101$

Answer 1

Answer: (C)

$8:82$

A set of numbers which do not have any other common factor other than 1 are called co-prime or relatively prime numbers. This means those numbers whose HCF is 1.
A,B,D options are co primes but not C
Hence, option 'C' is correct.