The sum of all natural numbers between 100 and 200. Which are multiple of 3 will be: 

A man can row 52 km upstream and 42 km downstream in 10 hours. It is also known that he can row 66 km downstream and 60 km upstream in 13 hours. Find the speed of the man in still water.

The pipe can fill a tank in 36 minutes and the another pipe can empty it in 45 minutes. If both pipes are opened simultaneously, the time (in hours) it takes to fill half the capacity of the tank is:

The volume of a solid right circular cylinder is 5236 cm³, and its height is 34 cm. What is its curved surface area (in cm²)?

30 persons can do a piece of work in 24 days. How many more people are required to complete the work in 20 days?

A sum of ₹ 10,000 is lent partly at 8 % and remaining at 10% per annum. If the yearly interest on the average is 9.2 %, the two parts are 

Two cars travel from city A to city B at a speed of 36 and  48 km/hr respectively. If one  car takes 3 hours lesser time  than the other car for the journey, then  the distance between City A and  City B is

What is the value of 4² -3² + 6² – 5² + 8² + 7² +…………….92² – 91² ?