Quantitative Aptitude - Arithmetic Ability Questions

In figure 'O' is the centre of a circle. The area of sector OAPB is 5/18. of the area of the circle find 'x'.

If θ is acute angle and sin(θ+18°)= 1/2, then the value of θ in circular measure is

select the odd word/letters/number/number pair from the given alternatives.

Findout the odd word/letters/number/number pair 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.

In triangle ABC, O is the orthocenter and angle BOC is 120 deg. Calculate angle BAC.

What will be the maximum power of 8 that exactly divides 25!?

The number of students in a class is increased by 20% and the number now becomes 66. Initially the number was