Question

sum of money lent out on simple interest amounts to 2990 in 4 years and to 3282.50 in
$5 \frac{1}{2}$
years. Find the sum of money and rate of interest​

Answer 1

Answer:

⇒ S.I. for 2 years = Rs. 720.

⇒ S.I. for 7 years = Rs. 1020

∴ S.I. for 5 years = Rs. 1020− Rs. 720= Rs. 300.

⇒ S.I. for 2 years =

5

300

×2=Rs.120

⇒ Principal=720−120=Rs.600

∴ The sum is Rs.600.

Step-by-step explanation:

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