Posted by jyoti on Sunday, January 20, 2013 at 6:00am.
x(1.10)^3 = x + 331
x(1.1)^3 - x = 331
x(1.1^3 - 1) = 331
x = 331/(1.1^3 - 1) = 1000
check:
1000(1.1^3) = 1331
so the increase (or interest) is 331
Related Questions
maths - The difference of compound interest and simple interest on an amount at ...
maths --plse help ..sumebudy help me to solve this - On a certain sum, Compound ...
maths-- compound interest - find the compund interest on $2500 for one year at 4...
Social Studies - I was wondering if I could check my answers with someone. I'...
Visual Basic 2008 Programming - Help! I'm not sure how to start or how ...
Compound math - (Future Value) Suppose you invest $8000 into an account that ...
computer science - When $1000 is deposit at 5% simple interest, the amount grows...
math - alison invests £400 in an account paying compound interest 4% per ...
maths - how long will it take a sum of money to tripe itself at (i) 9.5% ...
math - 1.John deposited $40,000.oo in the bank and earned simple interest of 7% ...
For Further Reading
