Question

Veeru invested Rs 10000 at 5% simple annual interest, and exactly after two years, Joy

invested Rs 8000 at 10% simple annual interest. How many years after Veeru’s investment,

will their balances, i.e., principal plus accumulated interest, be equal?​

Answer 1

Step-by-step explanation:

GIVEN:-

=>Veeru invested Rs 10000 at 5% simple annual interest, and exactly after two years

=>Joy invested Rs 8000 at 10% simple annual interest.

TO FIND:-

=>How many years after Veeru’s investment, will their balances be equal.

$\huge\bf\underline{Answer}$

$\sf{ = > \dfrac{10000 \times 5(x + 2)}{100} + 10000}$

$\sf{ = > \dfrac{8000 \times 10 \times (x)}{100} + 8000}$

$\sf{500(x + 2)+10000 - 8000 = 800x}$

$\sf{1000 + 2000 = 800x - 500x}$

$\sf{3000 = 300x}$

x= 10

Therefore, The veeru investment wad made x+2yrs ago.

So, it is 12yrs.

After 12yrs their balance will be equal.