Q. 324.4( 5 Votes )

A sum of money kept in a hank amounts to Rs. 600/– in 4 years and Rs. 800/– in 12 years. Find the sum and interest carried every year.

Answer :

Let the required sum = a


and the interest carried every year = d


According to question,


In 4years, a sum of money kept in bank account = Rs. 600


i.e. t5 = 600 a + 4d = 600 …(i)


and in 12 years , sum of money kept = Rs. 800


i.e. t13 = 800 a + 12d = 800 …(ii)


Solving linear equations (i) and (ii), we get


a + 4d – a – 12d = 600 – 800


– 8d = –200


d = 25


Putting the value of d in eq.(i), we get


a + 4(25) = 600


a + 100 = 600


a = 500


Hence, the sum and interest carried every year is Rs 500 and Rs 25 respectively.


Rate this question :

How useful is this solution?
We strive to provide quality solutions. Please rate us to serve you better.
Related Videos
Champ Quiz | Arithmetic Progression34 mins
Champ Quiz | Arithmetic Progression30 mins
Lets Check Your Knowledge in A.P.49 mins
Fundamental Theorem of Arithmetic- 143 mins
NCERT | Fundamental Theorem Of Arithmetic45 mins
Quiz on Arithmetic Progression Quiz32 mins
Arithmetic progression: Previous Year NTSE Questions34 mins
Get to Know About Geometric Progression41 mins
NCERT | Solving Questions on Introduction of A.P42 mins
Arithmetic Progression Tricks and QUIZ37 mins
Try our Mini CourseMaster Important Topics in 7 DaysLearn from IITians, NITians, Doctors & Academic Experts
Dedicated counsellor for each student
24X7 Doubt Resolution
Daily Report Card
Detailed Performance Evaluation
view all courses