3. Ritu lent a sum to Reena at simple interest which amounts to * 7500

1.	3. Ritu lent a sum to Reena at simple interest which amounts to * 7500 in 5 years and9500 in 9 years. Find the sum of money and the rate of interest.
Answer» Explanation: Explanation: Let the rate be R% p.a. Then, 5000 X R x 2 + 3000 x R x 4 = 2200. 100 100 100R + 120R = 2200 R = 2200 = 10. 220 Rate = 10%.

3. Ritu lent a sum to Reena at simple interest which amounts to * 7500 in 5 years and9500 in 9 years. Find the sum of money and the rate of interest.

Answer»

Explanation:

Explanation:

Let the rate be R% p.a.

Then, 5000 X R x 2 + 3000 x R x 4 = 2200.

100 100

100R + 120R = 2200

R = 2200 = 10.

220

Rate = 10%.