Question

EXERCISE 7.1
A. Using the unitary method, find the simple interest for 1 year on
1. 1000 at 8%.
2. ? 640 at 5%.
3. * 700 at 11%.
42500 at 9%
5. * 3000 at 6%.
6. 1690 at 10%.​

Answer 1

Answer:

Amount of sugar bought for Rs 260 = 8 kg

Amount of sugar bought for Re 1 = 8260 kg

Now, amount of sugar bought for Rs 877.50 = 8260×877.50 kg = 27 kg

∴ 27 kg of sugar can be bought for Rs 877.50.