Question

Boris invested his savings in two investment funds. The amount he invested in fund A was twice as much as the amount he invested in fund B. Find A returned 8% profit and fund B returned a 2% profit. How much did he invest in fund B, if the total profit from the two funds together was 1440

Answer 1

The fund invested by Mr. Boris in B is $ 452.8

Explanation:

Given as :

The profit percentage return from fund A = 8 %

The profit percentage return from fund B = 2 %

Let the amount invested in fund B = x

So , The amount invested in fund A = 2x

The total profit earn together = 1440

So, The profit earn from fund A = 2x + 8% of 2x = 2.16 x

And The profit earn from fund B = x + 2% of x = 1.02 x

∴ 1.02x + 2.16x= 1440

Or, 3.18x = 1440

∴ x =
`(1440)/(3.18)` = 452.8

So, The fund invested ib B = x =$ 452.8

Hence The fund invested by Mr. Boris in B is $ 452.8 Answer