Question

A man invested 10000 rupees, split into two schemes, at annual rates of interest 8% and 9%. After one year he got 875 rupees as interest from both. How much did he invest in each?

Answer 1

If one part is x then

the remaining part is 10000 – x

\(x\times\frac{8}{100}+(10000-x)\times\frac{9}{100}=100\)

8x + 90000 – 9x = 87500

90000 – 87500 = x

2500 = x

one part = 2500 and

remaining part = 7500