Question

Jackson invested 20000. He invested a part of it at 12% and the rest at 10% His annual
income from these investments is 7 2280 How much did he invest at each rate?​

Answer 1

Step-by-step explanation:

Invest 20,000

Invest 20,000

Invest 20,000 He investim two parts

Invest 20,000 He investim two parts suppose ome pant X So Second is 20000-x

your final intrest is 2280 rs

so the intrest of first investmet is

x×12/100×1 = 12x/100

second part intrest at 10 percent

=20000-x × 10/100

=200000-12x/100

both intrest calculation give in picture...

last ans he put 14000 at 12 percent intrest

and 6000 at 10 percent intrest