# Easy Number System Solved QuestionAptitude Discussion

 Q. When 75% of a two-digit number is added to it, the digits of the number are reversed. Find the ratio of the unit's digit to the ten's digit in the original number.
 ✖ A. 1:2 ✖ B. 1:4 ✔ C. 2:1 ✖ D. 3:2

Solution:
Option(C) is correct

Suppose the number is $xy$

we have, $10x+y +\dfrac {75}{100} × (10x+y) = 10y+x$

Hence $\dfrac{y}{x} = \dfrac{2}{1}$

## (2) Comment(s)

Harsheen
()

How to solve it ???

Ravish
()

the answer is given as per the reversed number