Quantitative Aptitude - Arithmetic Ability Questions

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.

In a college, 25% of male faculties are same in number as 1/3rd of the female faculties. What is the ratio of male faculty to female faculty in that college?

Rs. 10000 is being compounded at 20% per annum. Calculate the amount after 2 years if the rate of interest is charged half yearly.

2sin[(C+D)/2].sin[(D­-C)/2] is equal to

What is the value of cosecA/√(cosec2A ­- 1)?

What is the value of 99992 x 100008?

What is the value of (√3 - sec60) ?

What is the least number that can be multiplied to 69120 to make it a perfect cube?