Q31. What is the least number of squares tiles required to pave the floor of a room 15.17 m long and 9.02 m broad?
A. 714
B. 814
C. 614
D. 713
Q32. A room is half as long again as it is broad. The cost of carpeting the at Rs. 5 per sq.m is Rs. 270 and the cost of papering the four walls at Rs. 10 per sq.m is Rs. 1720. If a door and 2 windows occupy 8 sq. m, find the dimensions of the room.
A. b=6; l=18; H=6
B. l=5; b=18; H=18
C. b=5; l=6; H=18
D. l=6; b=18; H=15
Q33. The length of the room is 5.5m and width is 3.75m. Find the cost of paving the floor by slabs at the rate of Rs.800 per sq meter
A. Rs.15500
B. Rs.17500
C. Rs.18500
D. Rs.16500
Q34. The diagonal of the floor of a rectangular closet is 7 feet. The shorter side of the closet is 4
feet. What is the area of the closet in square feet?
A. 27
B. 36
C. 18
D. 9
Q35. Find the area of a right-angled triangle whose base is 12 cm and hypotenuse is 13cm.
A. 40
B. 30
C. 60
D. 50
Q36. The diagonal of a rectangle is cm and its area is 20 sq. cm. The perimeter of the rectangle must be:
A. 28
B. 48
C. 18
D. 38
Q37. The base of a triangular field is three times its altitude. If the cost of cultivating the field at Rs. 24.68 per hectare be Rs. 333.18, find its base and height.
A. B=300;H=900
B. B=600;H=700
C. B=500;H=900
D. B=900;H=300
Q38. If the length of a certain rectangle is decreased by 4 cm and the width is increased by 3 cm, a square with the same area as the original rectangle would result. Find the perimeter of the original rectangle.
A. 30
B. 50
C. 20
D. 40
Q39. Find the length of a rope by which a cow must be tethered in order that it may be able to graze an area of 9856 sq meters.
A. 76m
B. 16m
C. 56m
D. 14m
Q40. The diameter of the driving wheel of a bus is 140 cm. How many revolution, per minute must the wheel make in order to keep a speed of 66 kmph ?
A. 250
B. 550
C. 150
D. 350
