Question

Mr. X invested a par of his investment in 10% bond a and a part in 15% bond
b. His interest income during the first year is rs 4,000. If he invests 20% more in10% bond a and 10 % more in 15% bond b, his income during the second year increases by rs 500. Find his initial investment and the new investment in bonds a and b usingmatrix method.

Answer 1

Answer:

hey here is your answer

If the amounts in A and B are x and y, then

.10x + .15y = 4000

.10(1.2x) + .15(1.1y) = 4000+500

hope it help you ☺️