There will be a loss of 10% , if a chair is sold for TK. 540. At what price should the chair be sold to make a profit of 20% ?

The cost function of a product is 400 + 2x, where x is the number of units produced . How many units should be...

A car-wash can wash 8 cars in 18 minutes. At this rate, how many cars can the car-wash in 3 hours ?

Organizers of a trade fair projected an increase of 20% in the number of visitors over the previous year, but...

P is now 8 years older than Q. 17 years ago P was twice as old as Q. How old will Q be in 10 years ?

Salim gets grades of 79, 83, 86 and 89 on four math tests . What grade must he get on his fifth test to averag...

A man deposits TK. 600 in a Bank at 10% interest rate compounded annually . At the end of the second year, wha...