A 275 m long train crosses a platform of equal length in 33 s. What is the speed of the train in km/h? 

The present ages of two persons are 36 and 50 years respectively. If after n years the ratio of their age will be 3 : 4, then the value of n is 

Direction : What should come in place of the question (?) in the following question.

8424÷ 135 ×6=?

The average of all the numbers between 6 and 50 which are divisible by 5 is

The speed of two trains are in the ratio of 3:4. They are going in opposite directions along parallel tracks. If each takes 3 seconds to cross a telegraph post, find the time taken by the trains to cross each other completely?

If Cost Price of 20 tables is equal to the Selling Price of 25 tables. Find the loss percentage.

The value of which one of the following fractions falls in between $$ {3\over 5}$$ and $$ {7\over 8}$$?

The average of 5 consecutive integers starting with ‘M’ is ‘K’. What is the average of 6 consecutive integers stating with (m+1)?