Quantitative Aptitude - Arithmetic Ability Questions

Present age of Anil and Rajesh are in the ratio of 11 : 6 respectively. 9 years ago, their ages were in the ratio of 7 : 3. If the Pankaj’s present age is 1/4 of the Anil’s present age, then what is the Pankaj’s present age (in years)?

The point R(a,b) is first reflected in origin to R1 and R1 is reflected in x­axis to (­-4,2). The co-­ordinates of point R are

40.36 ­- (9.347 -­ x ) -­ 29.02 = 3.68. Find x.

O is the centre of the circle and ∠AOB = 150°, and the shaded portion is x part of the circular region, then x = ?

The diameter of a circle is equal to the side of the square. What is the area of the square if the area of the circle is 49π sq cm?

The average of ten numbers is 18. If one number is removed, then the average becomes 16, then what is the removed number?

sin(A+B) -­ sin(A-­B) is equal to

Select the odd letters from the given alternatives.