Q36. In a 2-digit number unit's digit is 5 more than the ten's digit. If 5 times the given number is 24 more than two times the number obtained by interchanging the digits of the given number, then th

Question

Q36. In a 2-digit number unit's digit is 5 more than the ten's digit. If 5 times the given number is 24 more than two times the number obtained by interchanging the digits of the given number, then the given number is:

FirstInTest · Accepted Answer

Correct answer: C. Let 10's digit be x then 1's digit will be x + 5. The number = 10x + x + 5 = 11x+5. Given, 5 (11x + 5) = 24 + 2 (11x + 50). 55x-22x = 100+24-25. x = 3. Then given number is 11 x 3 + 5 = 38.

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