Q. 19 B3.9( 52 Votes )

A trust fund has

Answer :

(a) Let Rs x be invested in the first bond.

Then, the sum of money invested in the second bond will be Rs (30000 – x).

It is given that the first bond pays 5% interest per year, and the second bond pays 7% interest per year.

Thus, in order to obtain an annual total interest of Rs 1800, we get:

5x + 210000 -7x = 200000

210000 -2x = 200000

2x = 210000 – 200000

2x = 10000

x = 5000

Therefore, in order to obtain an annual total interest of Rs 2000, the trust fund should invest Rs 5000 in the first bond and the remaining Rs 25000 in the second bond.

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