How much time will it take for an amount of Rs.450 to yield Rs.81 as interest at 4.5% per annum of simple interest?

What is the ratio of the number of aspirants appearing for the banking exam from Institute A,C, and E together to the number of aspirants appearing for the exam from Institute B, D and F together?

What annual instalment will discharge a debt of 4,200 due in 5 yearsat 10% simple interest?

Nikhilesh invested certain amount in three different schemes A, B and C with the rate of interest 10 p.c.p.a., 12 p.c.p.a. and 15 p.c.p.a.. respectively. If the total interest accrued in one year was ? 3200 and the amount invested in scheme C was 150% of the amount invested in scheme A and 240% of the amount Invested in scheme B, what was the amount invested in scheme B?

What would be the compound interest obtained on an amount of 12600 Rs at the rate of 10% per annum after two years?

Rohan and Sohan started a business with investments of Rs 15000 and Rs 20000. Rohan continued till the end of the first year and Sohan left after x months. Their profits at the end of the first year were equal. Find x.

A milk man borrowed ?2,500 from two money lenders. For one loan, he paid 5% p.a. and for the other, he paid 7% p.a. The total interest paid for two years was Z 275. How much did he borrow at 7% rate?

Amit invests Rs. 9000 partly in 5%, Rs. 167 Shares @ Rs.240 and partly in 3% Rs. 700 shares @ Rs.850. If his total income is 500, how much has he invested in each?

What would be the compound interest obtained on an amount of Rs. 6,350/- at the rate of 14 p.c.p.a after two years?

Manju took Rs. 20000 at 5% SI for 2 years and invested it at 4% CI for same period. Find her gain/loss.