The percentage profit earned by selling an article for TK. 1920 is equal to the percentage loss interest by selling the same article for Tk 1280 . At what price should the article be sold to make 25% profit?

A person travels a certain distance at 3 km/hr and reaches 15 mi late. If he travels at 4 km/hr reaches 15 min...

A boy travelled from the home to the college at the rate of 25 km/hr and walked back at the rate of 4 km/hr. I...

Two men and three women can repair a bridge in 10 days while three men and two women can to same work in 8 day...

A boatman takes twice as long to go a distance upstream as to travel the same distance downstream . What is th...

Speed of a boat in standing water is 9 km/hr and the speed of the stream is 1.5 km/hr. A man rows to a place a...