Quantitative Aptitude - Arithmetic Ability Questions

A 150 m long train, travelling at 54 km/h, crosses a platform in 42 seconds. What is the length of the platform?

Find the least number which must be subtracted from 18265 to make it a perfect square

Which one of the following is the minimum value of the sum of two integers whose product is 24?

If tan(A/2) = x, then the value of x is

In a cricket match, the scores of the players are considered such that coefficient of variation of scores is 16 and mean is 25 then the variance is

If on an item there is 12% discount on the marked price of Rs 10,000 but the item is sold at Rs 8,360 only then what additional discount (in %) did the customer get?

If x=2+3,then the value of x2-x+1x2+x+1 is

Sumit and Amit undertook a work for Rs 7200. Sumit alone can do the work in 5 days and Amit alone can do the work in 4 days. If they work together,then what will be the difference (in Rs.) in the amount they receive?