MONEY MATH (3)

If the interest for 800 rupees for 1.5 years is ₹. 150. What is the rate of interest?

Avinash deposited 20000 rupees in a bank which compounds 6% interest annually. After 2 years, he again deposited ₹. 7528 along with it. How much amount will he get after two more years?

Dwaja borrowed a sum of ₹. 30000 from a bank which compounds the interest at the rate of 8% annually. After 2 years, she paid back an amount of ₹. 15000. How much she would have to pay approximately after one more year to close the loan?

Ajith gives his wife Anitta a birthday gift, giving her each year a number of rupees equal to the number of years of her age. If her birthday falls on August 8, what sum must be placed at simple interest at 7% on Jan 1, before she is 42, in order to raise the required sum?( consider the year as a non-leap year )

[Hint: Simple interest for the amount invested will be 42.]

Susheel deposited 40,000 rupees in a bank. He got back 45000 rupees after one year. What is the rate of interest?