If r and s are two digits of the number 65723rs such that this number is divisible by 40, then r + s  =  ?(A)  6     (B)  3    (C)  2    (D)  4Options :ABCD

Question

If r and s are two digits of the number 65723rs such that this number is divisible by 40, then r + s  =  ?(A)  6     (B)  3    (C)  2    (D)  4Options :ABCD
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Solution 1

For a number to be divisible by 40, it must end in 00. This is because 40 is a multiple of 10, and any number multiplied by 10 ends in 0. Therefore, in the number 65723rs, r must be 0 and s must also be 0 for the number to be divisible by 40.

So, r + s = 0 + 0 = 0.

However, 0 is not an option in Knowee AI StudyGPT is a powerful AI-powered study tool designed to help you to solve study prob

Knowee AI StudyGPT is a powerful AI-powered study tool designed to help you to solve study problem.
Knowee AI StudyGPT is a powerful AI-powered study tool designed to help you to solve study problem.
Knowee AI StudyGPT is a powerful AI-powered study tool designed to help you to solve study problem.
Knowee AI StudyGPT is a powerful AI-powered study tool designed to help you to solv

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