Question

Simple interest on a certain sum of money for 4 years at 4% per annum exceeds the compound interest on the same sum for 3 years at 5% per annum by Rs. 228. Find the sum.

Answer 1

16x/100-x(105/100)3-x=228

Answer 2

x=12000

Answer 3

simple interest for 4 years : \(\large x*\dfrac{4}{100}*4\)

compound interest for 3 years : \(\large x(1+0.05)^3-x \)

Answer 4

difference :

\(\large \left( x*0.04*4\right) - \left( x(1+0.05)^3-x\right) \gt 228\)

Answer 5

you should get x = 96,000
check ur calculation again

Answer 6

http://www.wolframalpha.com/input/?i=solve+x*0.04*4+-+++%28+++x*%281%2B0.05%29%5E3-x%29+%3D++228