Question

9. A sum of money lent out at simple at simple interest amounts to rs 5760 in 2
years and to rs 7200 in 5 years. Find the sum of money lent out and the rate of
simple interest​

Answer 1

Answer:

600 Rs.

Principal + SI for 2 years = 720 Rs. ……(I)

Principal + SI for 7 years = 1020 Rs. ……(II)

Subtracting equation (I) from (II),

S.I. for 5 years = (1020 – 720) = 300 Rs.

∴ S.I. for 2 years 

∴ Principal = (720 – 120) = 600 Rs.

Hence option [B] is correct answer

Step-by-step explanation:

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