Quantitative Aptitude - Arithmetic Ability Questions

Select the odd number from the given alternatives.

In the following question, four number pairs are given. The number on left side of (–) is related to the number on the right side of (–) with some Logic/Rule/Relation. Three are similar on basis of same Logic/Rule/Relation. Select the odd one out from the given alternatives.

x and y are two numbers such that their mean proportion is 8 and third proportion is 512. What is the value of x and y?

If x3-2x=3x, then the value of x2+1x2 will be

The difference between compound interest and simple interest on a sum for 2 year at 20% per annum is Rs 200. If the interest is compounded half yearly, then what is the difference (in Rs) between compound and simple interest for 1st year?

The time for a train of length 110 metres running at the speed of 72 km/hr to cross a bridge of length 132 metres is

If two successive discounts of 50% and 10% are offered, then what is the net discount (in %)?

Abhinav is 2 times as good a workman as Balwant and therefore is able to finish a job in 36 days less than Balwant. Working together, they can do it in