Question

An amount of rs 5000 is put into three investments at the rate of interests of 6% , 7% and 8% per annum respectively. The total annual income is rs 358. If the combined income from the first two investments is rs 70 more than the income from the third , find the amount of each investment by matrix method.

Answer 1

Answer:

Step-by-step explanation:

Investment of three companies are

300,350,400 respectively.

Total income is 358

Let income of third investment be x

So income of first and second investment is x+70

A.T.Q

x+x+70=358

2×=358-70

×=288/2

X=144

Income of first and second investment is 214

And income of third investment is 144

Answer 2

Answer:

Step-by-step explanation:it is it