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.

Sterna invested an amount of ?16000 for two years at compound interest and received an amount of ? 17640 on maturity. What is the rate of interest?

The difference between a discount of 35% and successive discounts of 20% and 20% on a certam bill 22. Find the amount of the bill.

Find the compound interest on the sum of Rs. 4000@ 12%p.annum at the end of two years?

Ganeshi's monthly income is twice that of Jassi's monthly income. Two-third of Jassi's monthly income is equal to Sukhvinder’s monthly income. If Sukhvinder’s annual income is Rs. 2.34 lacs. What is Ganeshi’s monthly income?(In some cases annual income and in some cases monthly income is given.)

At a simple interest ? 800 becomes ? 956 in three years. If the interest rate, is increased by 3%, how much would ?800 become in three years?