 ## SSC CHSL Quantitative Aptitude Test 28

Instructions

For the following questions answer them individually

Q 1

Study the given pie chart and answer the question that follows.

The total number of students in schools D and E is what percentage more than the total number of students in schools B and C?

Q 2

From a point P which is at a distance of 10 cm from the centre O of a circle of radius 6 cm, a pair of tangents PQ and PR to the circle at point Q and respectively, are drawn. Then the area of the quadrilateral PQOR is equal to

Q 3

If $$x^4 + x^{-4} = 2599$$, then one of the values of $$x - x^{-1}$$, where x > 0, is equal to:

Q 4

Study the given graph and answer the question that follows.

If 60% of the total number of students obtaining 50 marks or more but less than 70 marks are girls and 55% of the total number of students obtaining 70 marks or more but less than 90 marks are also girls, then the total number of girls obtaining 50 marks or more but less than 90 marks is:

Q 5

A trader buys an article at 80% of its marked price and sells it at 10% discount on its marked price. His percentage profit is: