ExamCompetition Forum Question Papers Ask A Question Mock Test Learn & Earn Sign Up Login Menu



0 vote

A boy was asked to find 3/5 of a fraction. Instead, he divided the fraction by 2/5 and got an answer which exceeded the correct answer by 36/75. The correct answer is

Asked on by | Votes 0 | Views: 136 | Tags: algebra     | quantitative aptitude     | Add Bounty

A boy was asked to find 3/5 of a fraction. Instead, he divided the fraction by 2/5 and got an answer which exceeded the correct answer by 36/75. The correct answer is
1). 41/95
2). 72/475
3). 71/25
4). 73/95


Share on Facebook      Share on Whatsapp       Share on Twitter




1 answers

3 vote
Answered by on | Votes 3 |

Let the initial fraction be x.

∴ Correct answer = 3x/5

Given, he divided the fraction by 2/5 and got an answer which exceeded the correct answer by 36/75.

$(\begin{array}{l} \therefore \frac{x}{{\frac{2}{5}}} = \frac{{3x}}{5} + \frac{{36}}{{75}}\\ \Rightarrow \frac{{5x}}{2} = \frac{{45x + 36}}{{75}} \end{array})$

⇒ 125x = 30x + 24

⇒ x = 24/95 

Correct answer = 3x/5 = 72/475

Join Telegram Group




Answer This Question

Name:
Email:
Answer :
Sum of (4+4)
Submit: