A trader had 16 quintals of wheat. He sold a part of it at 17% profit and the rest at 27% profit, so that he made a total profit of 21%. How much wheat did he sell at 27 % profit? 

A man invested a sum of money in Scheme A, at a rate of 15% per annum for simple interest, at the end of 2 years the amount received by him is invested in scheme B at 20% per annum for compound interest. If the interest received by him from scheme B at the end of 2 years is Rs. 2860, then find the sum invested by man in the beginning?

A person has some amount with him. 25% of it is stolen in a bus, 10% is lost through a hole in the pocket, 50% of remainder is spent on food. He then purchases a book worth Rs. 26 from the remainder. He walks back home because all his money is over. What was the initial amount?

The value of $$ {3sin30°-4sin^{3}30°}$$

A and B under took a work Rs 2200. A alone can do the work in 10 days and B alone can do the work in 12 days. If they work together, then what will be the difference (in Rs) in the amount they receive?  

A sum is divided among 120 men and some women in the ratio 15:21. If each man gets Rs. 5 and each woman gets Rs. 4, the number of women is

If the number 247_679 is completely divisible by 9, then the smallest whole number in the place of the blank digit will be 

The sum of 10 terms of the arithmetic series is 390. If the third term of the series is 19. Find the first term