The difference between compound interest for a year payable half yearly and simple interest on a certain sum of money lent out at 10 percent for a year is rupee 15. Find the sum of money lent out.

Q. A sum of money is invested at 3 percent and a second sum twice as large as the first is invested at 2 percent. Total 1 interest is Rs.448 per year. The sum invested at 2

^{\frac{1}{2}}

percent is -

Q. Sunil lent a sum of money at 4 percent simple interest. In 8 years the interest amounted to Rs.3,400 less than the sum lent. The sum lent was -

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A sum of money lent out at 10 percent for 4 years produces twice as much as interest as ₹ 6000 in 312 at 5 percent . Find the sum

The correct option is B ₹ 5250 Let the required sum be P In the first case r = 10 % and T = 4 years In the second case r = 5 % and T = 312 = 72 P = ₹ 6000 We have ₹ P×10×4100 = 2 × ₹ 6000×7×52×100 ₹ 40P100 = ₹ 60 × 35 P = ₹ 2100×10040 = ₹ 5250

A sum of money lent out at 10 percent for 4 years produces twice as much as interest as ₹ 6000 in $3 \frac{1}{2}$ at 5 percent . Find the sum