If + means ÷, -means ×, ÷means + and ×means –, then 36×12+4÷6+2-3 =?

The ratio of milk and water in a mixture is 4:3. If 14 liters of water is added to the mixture, the ratio of milk and water become 3:4. Then the quantity of milk in the mixture is.

At simple interest, in how many years will a sum of money double itself at 12% per annum?

Arjun completes a work in 35 days where as Biju completes the same work in 45 days. If they complete it, together and get a payment of Rs. 3200. What is Biju’s share?

The total number of prime factors in 6²⁰×16¹⁵×21¹² are:

A man sold an article for Rs. 450 at a loss of 10%. At what price should it be sold to earn a profit of 10%.