Getting Image
Please Wait...
Register now for special offers
+91
Home
>
English
>
Class 7
>
Maths
>
Chapter
>
Simple Interest
>
In how many years will a cer...
UPLOAD PHOTO AND GET THE ANSWER NOW!
Text Solution
Solution : Principal amount be P.<br> Amount= principal amount+simple interest<br> 3P=P +simple interest<br> =>simple interest=2P<br> =>`2P=(P xx R xx T)/100` given R=25%<br> =>`2 xx 4=8 yrs=T`
Answer
Step by step solution by experts to help you in doubt clearance & scoring excellent marks in exams.
Add a public comment...
Follow Us:
Popular Chapters by Class:
Open in App
Solution
Let sum of money be P=100
Interest per annum =10%
amount = 2× 100 = 200
simple interest = 200 - 100 = 100
Since,
SI=PTR100
⇒T=100×SIPR
=100×100100×10
∴t=10 years.
Similar questions
Q. A certain sum of money lent out at a certain rate of interest per annum,
doubles itself in 10 years. In how many years will it treble itself?
Q. In how many years will a sum of money double itself at 4% per annum ?
Q. At what rate percent per annum simple interest will a sum of money double itself in 6 years?
Q. A sum of money lent out at C.I. at a certain rate per annum doubles itself in 5 years. Find in how many years will the money become eight times of itself at the same rate of interest p.a.
Q. At what rate percent per annum will a sum of money double itself in 10 years.
View More