Two men, A and B, run a 4 km race in a circular course of 1/4 km. If their speeds are in the ratio of 5 : 4 , how often does the winner pass the other?

A sum of money amounts to Tk. 6690 after 3 years and to TK. 10035 after 6 years on compound interest . Find th...

Once card is drawn at random from a pack of 52 cards. What is the probability that the card drawn is a face ca...

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...