Maths / Comparing Quantities / Simple Interest

QUESTION
 

In how many years will a sum of money double itself at 4% per annum ?

OPTIONS
A. 

8 years

B. 

16 years

C. 

12 years

D. 

25 years

Right Option : D

EXPLANATION
Explain TypeExplanation Content
Text

Let principal be xrate=4%amount =2xsimple interest =2x-x =xSI = P*R*T/100x= x*4*T/100x= T x/2525x = Tx T = 25x/xT= 25 Time = 5 years

Related Videos

































View Contents
(Concept based Learning and Testing for [6th - 10th], NTSE, Bank & Govt. Exams)
Self Learning
Testimonials
No Preview
STUDENT RESPONSE - Barkha Arora C/o ABHYAS Academy
 10th
It has a great methodology. Students here can get analysis to their test quickly.We can learn easily through PPTs and the testing methods are good. We know that where we have to practice
Back
Courses We Offer
(Concept based Learning and Testing for [6th - 10th], NTSE, Bank & Govt. Exams)