question_answer

k Consider the following statements:

1. 7710312401 is divisible by 11.

2. 173 is a prime number.

Which of the statements given above is/are correct?

A) Only 1              

B) Only 2

C) Both 1 and 2                 

D) Neither 1 nor 2

Correct Answer: C

Solution :

Sun of digits at even places \[7+0+1+4+1=13\] sum of digits at odd places \[7+1+3+2=0=13\] difference = 13 - 13 = 0 which is multiple of 11. 173 is not divisible by any prime number between 1 - 14 Hence it is a prime number \[\therefore \]      Both statements are true