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Home / Questions / Q 3959
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When a two-digit number is multiplied by the sum of its digits, the pr

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| When a two-digit number is multiplied by the sum of its digits, the product is 424. When the number obtained by interchanging its digits is multiplied by the sum of the digits, the result is 280. The sum of the digits of the given number is :

A. 7

B. 6

C. 8

D. 9

Right Answer is: C

SOLUTION

Let the two digit number

A.T.Q.

Dividing equation  by equation , we get –

The number is 53.

Required, sum of digit of number

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