Quantitative Aptitude - Arithmetic Ability Questions

The third proportional of two numbers 7 and 21 is

Rs. 750 invested for 3 months gave an interest of Rs. 18. What was the simple rate of interest per annum?

A person invested a total sum of Rs 7900 in three different schemes of simple interest at 3%, 5% and 8% per annum. At the end of one year he got same interest in all three schemes. What is the money (in Rs) invested at 3%?

The sum of money that will yield Rs. 60 as simple interest at 6% per annum in 5 years is

A wholesaler sells a good to a retailer at a profit of 5% and the retailer sells it to a customer at a profit of 10%. If the customer pays Rs. 2,000, what had it cost (in Rs) the wholesaler?

Bunty had candies and chewing gums in his sweet box in the ratio 7 : 13. After he has eaten 8 candies and 11 chewing gums the ratio became 1 : 2. How many candies does he have now?

Calculate the value of 61681x61681-31681x3168130000

Select the odd letters from the given alternatives.