In a group of 60 people like Coca cola and 42 people like Pepsi Cola. Each person likes at least one of the two drinks. How many of these people like both Coca Cola and Pepsi Cola ?

In a student dormitory there was enough food to feed 300 students for 15 days, Became of admission of some new...

The speeds of three cars are in the ratio 2 : 3 : 4. The ratio of the times taken by these cars to travel the...

Complete the following series. 9,11,15,23,39,?

In 4 years, Tk. 6000 amounts to Tk. 8000. In what time at the same rate will Tk. 525 amount to Tk. 700?

A, B and C are three partners. They altogether invested Tk. 14,000 in business. At the end of the year, A got...

Find the average of all the numbers between 6 and 34 which are divisible by 5.