Question

Which of the pairs are co-primes ?

• A. $15$ and $33$
• B. $24$ and $29$
• C. $17$ and $19$
• D. All of above

Answer 1

The correct option is D All of above

If the H.C.F of two numbers are $1$ they are said to be co-prime.

In all the cases, we have only one common factor and that is 1.

Hence answer is D.