When a 2-digit number is divided by the sum of its digits, the quotient is 4. If the digits are reversed, the new number is 6 less than twice the original. The number is:

If 5 men can do a piece of work in 6 days and 10 women can do it in 5 days. In how many days can 3 men and 5 w...

If A's income is 25% more than B's income, then the percentage of B's income in terms of A's income is:

A person saved Tk. 5 in buying a dress on sale. If he spent Tk. 45, then he saved:

When the price of oranges decreases by 20%, a person can buy 5 oranges more for Tk. 100. How many oranges can...

There are _____ numbers between 100 to 400 which are divisible by 11.

A father is 61 and his son is 16. In how many years will the father be twice as old as his son?