Percentage and Profit & Loss

An investor earns 3% return on (1/4)^th of his capital, 5% on (2/3)^rd and 11% on the reminder. What is the average rate of return he earns on his total capital?

Which of the numbers below is not equivalent to 2%?

In a city, 40% of the people are illiterate and 60% are poor. Among the rich, 10% are illiterate. What percent of the poor population are illiterate?

The output of a glass factory was increased by 12% to keep up with the rising demand. Later, this new output was increased by another 25%, By approximately what percentage would the output now have to be decresed in order to restore to the original output?

After getting two successive discounts, a shirt with a list price of 150 taka available at 105 taka. If the second discount is 12.5%, find the first discount.

Idrak buys 80 kg sugar at taka 40 per kg. and 40 kg rice at taka 50 per kg. At what price approximately in taka per kg should he sell to make profit 10% of cost?

In a survey, 30% of the people surveyed owned a personal computer and 75% owned a cellular telephone. If 25% owned both a cellular telephone and a personal computer, then the percentage of the people who does not have either of the instrument?

A tradesman sold an article at a loss of 20%. If the selling price had been increased by 100 taka, there would have been a gain of 5%. What was the cost price of the article

After getting two successive discounts, a shirt with a list price of 150 taka is available at 105 taka. If the second discount is 12.5% find the first discount?

If y exceeds x by 20%, then x is less than y by:

In a university, 80 percent of the students lived in hostel, and 60 percent of the hostel students are lucky to get a single room. If number of lucky students is 1200, then how many students were there in the university?

Mr. A multiplies a number by 3 instead of dividing by 3. Resultant number is what percentage of the correct value?

The price of a loaf of bread was increased by 20%. How many leaves can be purchased now by the amount of money used to buy 300 loaves at the earlier price?

The ratio 5 : 4 expressed as a percent equals

The length of a rectangle is twice than that of its breadth. If the length of the rectangle is increased by 10%, while its breadth is decreased by 10% what is the percentage change in the perimeter?

After a 20% price decrease, a computer monitor is on sale for Tk. 7200. What is its original price?

If the height of a right square pyramid is increased by 12% by what percent must the side of the base be increased, so that the volume of the pyramid is increased by 28%?

A coat was sold for Tk 75. The coat was sold for 150% of the cost of the coat. How much did the coat cost?

If w is 10% less than x, and y is 30% less than z, than wy is what percent less than xz ?

What is the original price of a T-shirt, if the sale price after 16% discount Is 264?