The average attendance of a college for the first three days of a week is 325 and first four days is 320. How many were present on the fourth day?

TK. 355 has been divided among A, B,C in such a way that a had TK. 20 more than B and C had Tk. 15 more than B...

If 2 kg of metal, of which 1/3 is zinc and the rest is copper s, be mixed with 3 kg of metal , of which 1/4 is...

By what percentage above the cost price ,a fan should be sold if a shopkeeper wants to make a profit of Tk. 50...

Out of two numbers, 4 times the smaller one is less than 3 times the larger one by 5, if the sum of the number...

The sum of the squares of these three numbers is 532 and the ratio of the first and the second as also of the...

Pipe P can fill and empty tank in 4 hours but pipe Q can completely empty the same tank in 8 hours. But the pi...