Mathematics MCQs

Page No. 26

The radius of a circular wheel is 1.75 m, how many revolutions will it make in traveling 1 km?


a1000


b2000


c3000


d4000


View Answer 1000

If the wheel is 14 cm then the number of revolutions to cover a distance of 1056 cm is?


a15


b10


c14


d12


View Answer 12

The ratio of the radius of two circles is 1: 3, and then the ratio of their areas is_________?


a1:3


b1:6


c1:9


d1:5


View Answer 1:9

The radius of the two circular fields is in the ratio 3: 5 the area of the first field is what percent less than the area of the second?


a50%


b60%


c40%


d64%


View Answer 64%

A rope of which a calf is tied is increased from 12 m to 23 m, how much additional grassy ground shall it graze?


a1120 m2


b1250 m2


c1210 m2


d1200 m2


View Answer 1210 m2

What is the ratio between perimeters of two squares one having 3 times the diagonal then the other?


a4:8


b1:4


c6:2


d3:1


View Answer 3:1

The radius of a semi circle is 6.3 cm then its perimeter is?


a35.4 cm


b32.4 cm


c32 cm


d30 cm


View Answer 32.4 cm

The perimeter of a semi circle is 144 cm then the radius is_________?


a25 cm


b28 cm


c30 cm


d35 cm


View Answer 28 cm

A circular path of 13 m radius has marginal walk 2 m wide all round it. Find the cost of leveling the walk at 25p per m2?


aRs. 45


bRs. 78


cRs. 44


dRs.40


View Answer Rs. 44

A paper is in a square form whose one side is 20 cm. Two semi circles are drawn on its opposites as diameters. If these semi circles are cut down what is the area of the remaining paper?


a (400 – 100π) cm2


b(400 – 2π) cm2


c(400 – 200π) cm2


d200π cm2



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