Once card is drawn at random from a pack of 52 cards. What is the probability that the card drawn is a face card (Jack,Queen and King only)?

If two times of the daughter's age in years is included to the mother's age, the total is 70 and if two times...

A student multiplied a number by 3/5 instead of 5.3. What is the percentage error in the calculation?

Ten years ago, A was half of B in age. If the ratio of their present ages is 3 :4 then what will be the total...

The size of the wooden block is cm. How many such blocks will be required to contract a solid wooden cube of m...

A tank is 25 m long, 12 m wide and 6 m deep. The cost of plastering its walls and bottom at 75 paisa per is -

The difference of two numbers is 20% of the larger number, If the smaller number is 20, then the larger number...