Advanced Quantitative Aptitude For SSC CHSL and SSC CGL Exams

5. An equilateral triangle of side 6 cm has its corners but off to form a regular hexagon. Area (in cm^2) of this regular hexagon will be 

(1) 3√3

(2) 3√6

(3) 6√3

(4) (5√3)/2

6. If the circumference of a circle is decreased by 50% then the percentage of decrease in its area is

(1) 25

(2) 50

(3) 60

(4) 75

7. A copper wire of length 36 m and diameter 2 mm is melted to form a sphere. The radius of the sphere (in cm) is 

(1) 2.5

(2) 3

(3) 3.5

(4) 4

8. The ratio of the radil of two wheels is 3 : 4. The ratio of their circumferences is

(1) 4 : 3

(2) 3 : 4

(3) 2 : 3

(4) 3 : 2

9. If the length of a rectangle is increased by 10% and its breadth is decreased by 10% and its breadth is decreased by 10%. The change in its area will be

(1) 1 % increase

(2) 1 % decrease

(3) 10% increase

(4) No change

10. If each side of a square is increased by 10%. Its area will be increased by 

(1) 10%

(2) 21%

(3) 44%

(4) 100%

Answers Key
1.(3)
2.(1)
3.(2)
4.(3)
5.(3)
6.(4)
7.(2)
8.(2)
9.(2)
10.(2)