43 Views

Question : A certain sum of money becomes triple itself in 26 years at simple interest. In how many years it will become five times of itself?

Option 1: 64 years

Option 2: 52 years

Option 3: 56 years

Option 4: 60 years


Team Careers360 17th Jan, 2024
Answer (1)
Team Careers360 24th Jan, 2024

Correct Answer: 52 years


Solution : Given: Let the principal be $P$.
A sum of money becomes triple of itself in 26 years.
Simple interest in this case $=3P-P=2P$
Let the time taken for the amount $P$ to $5P$ be $x$ years.
Simple interest in this case: $5P-P= 4P$
We know simple interest on amount $P$ at $r$% rate of interest in $t$ years = $\frac{Prt}{100}$
For the same rate of interest $r$, Simple interest is directly proportional to the time $t$ years.
So, $\frac{2P}{4P}=\frac{26}{x}$
$⇒\frac{1}{2} = \frac{26}{x}$
$⇒x=52$ years
Hence, the correct answer is 52 years.

SSC CGL Complete Guide

Candidates can download this ebook to know all about SSC CGL.

Download EBook

Know More About

Related Questions

TOEFL ® Registrations 2024
Apply
Accepted by more than 11,000 universities in over 150 countries worldwide
Manipal Online M.Com Admissions
Apply
Apply for Online M.Com from Manipal University
GRE ® Registrations 2024
Apply
Apply for GRE® Test now & save 10% with ApplyShop Gift Card | World's most used Admission Test for Graduate & Professional Schools
View All Application Forms

Download the Careers360 App on your Android phone

Regular exam updates, QnA, Predictors, College Applications & E-books now on your Mobile

150M+ Students
30,000+ Colleges
500+ Exams
1500+ E-books