Question

A girl was asked to multiply a number by 7/8, instead she
divided the number by 7/8 and got the result 15 more than the
correct result. The sum of the digits of the number was
​

Answer 1

Answer:

11

Step-by-step explanation:

let the number be x.

ATQ

x ÷ 7/8 = 15 + 7x/8

$\frac{8x}{7} = 15 + \frac{7x}{8}$

$\frac{8x}{7} = \frac{120 + 7x}{8}$

$64x = 840 + 49x$

$15x = 840$

$x = 56$

The sum of the digits is 5 + 6 = 11