QA – Placement Quizzes | Numbers, LCM and HCF | Question 6

You are given the largest number of 5-digit, you have to subtract x from this number so that the number is divisible by 23. Find the smallest possible value of x.

(A)

22

(B)

20

(C)

18

(D)

16

Answer: (C)

Explanation:

99999 is the greatest five digit number.

On dividing 99999 by 23 we get a remainder of 18.
It means 18 must be subtracted from 99999 to find greatest 5 digit number divisible  by 23.

Thus, C (18) is the correct choice.

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