Area - Quantitative Aptitude

Q11. Area of four walls of a room is 66 m2 and its length and bredth are 7.5 m and 3.5 m respectively. The height of the room is
(a) 3 m
(b) 5 m
(c) 6 m
(d) 7 m

Q12. A wheel makes 1000 revolutions in covering a distance of 88 km. The diameter of the wheel is
(a) 20 m
(b) 22 m
(c) 25 m
(d) 28 m

Q13. The length of minute hand of a wall clock is 7 cm. The area swept by it in 15 minutes is
(a) 23.5 cm2
(b) 32.5 cm2
(c) 38.5 cm2
(d) 47.5 cm2

Q14. The radius of a wheel is 0.21 m. How many times does it revolve during a journey of 0.792 km ?
(a) 550
(b) 600
(c) 650
(d) 675

Q15. In a circle of radius 14 cm, an arc subtends an angle of 60°at the center. The length of the arc is
(a) 12 1/3 cm
(b) 14 2/3 cm
(c) 15 1/3 cm
(d) 19 1/3 cm

Q16. The radius of the wheel of a vehicle is 70 cm. The wheel makes 100 revolutions in 50 seconds. The speed of the vehicle is
(a) 8.8 m/sec
(b) 9.2 m/sec
(c) 10.5 m/sec
(d) 11.2 m/sec

Q17. The area of a rhombus is 72 cm2. One of its diagonals is thrice the other. The length of the shorter diagonal is
(a) 2√3 cm
(b) 3√3 cm
(c) 4√3 cm
(d) 5√3 cm

Q18. If a square and a rhombus stand on the same base, then the ratio of the areas of the square and rhombus is
(a) 1
(b) 2
(c) 4
(d) 5

Q19. A triangle has sides of length 3 cm, 4 cm and 5 cm. What is the area of the circle inscribed in the triangle ?
(a) π cm2
(b) r cm2
(c) 1 cm2
(d) ½ cm2

Q20. What is the diameter of a wheel that makes 113 revolutions to go 2 km 26 decameters ?
(a) 60/11 m
(b) 67/11 m
(c) 70/11 m
(d) 75/11 m

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