The purchase price of 12 pencils equals to the sales price of 8 pencils. What is the rate of profit in %?

A survey of 200 people revealed that 140 of them can speak in Bangla and 70 of them can speak in English or bo...

If x = 2/3 what would be the value of x/(1+x)?

In how many ways a 3-member committee can be formed from 3 men and 3 women such that a particular man is alway...

If 2/3rd of the workers in an office are non smokers, what is the ratio of smokers to non-smokers?

50 girls and 100 boys were invited to a party. If 30% of the girls and 75% of the boys attended, what % of gue...

A book sells for Tk. 65. This price gives the seller a profit of 30%. what will be the new selling price (in T...