Two trains P and Q are moving in opposite direction at a rate of 36 km/hr and 45 km/hr respectively. A passenger is sitting in train P, finds that his train passes train Q in 8 seconds. What is the length of train Q?

A boat takes 4 hours to cover a certain distance running downstream, while it requires 8 hours 48 minutes to c...

Lubana purchased 20 kg of pulses at a rate of Tk. 14.25 per kg and 30 kg of pulses at a rate of TK. 11.50 per...

Rahim invested in all Tk. 2600 in three different schemes at 8% ,4% and 6% per annum simple interest . At the...

The ratio of boys and girls in a club is 3 : 2 . Which of the following could be the actual number of members...

30% apples out of 450 are rotten . How many apples are in good condition?

The present age of son is half of the present age of his mother. Ten years ago, his mother's age was thrice th...