Question
A giant circular wheel has a diameter of 14 metres. In
how many revolutions will the wheel cover a total of 4.4 km?Solution
Radius of the giant wheel = 14 ÷ 2 = 7 metres Circumference of the giant wheel = 2 × π × radius = 2 × (22/7) × 7 = 44 metres So, number of rotations to cover 4.4 km i.e. 4400 metres = 4400 ÷ 44 = 100
More Mensuration Questions
40.5 ÷ [4/5 of (32 + 18) - 29/2] = ? ÷ 102
(1/2) – (3/5) + 3(1/3) = ? + (5/6)
(350/?) = 23 + 33
25% of 250 + 32% of 200 = ? ÷ √ 16
? = 20% of 1200 + 256
21% of 400 − 150 = ? − 77
172Â - 92Â + 121 - 74 = ?
24% of 150% of 500 + 140 = ? × 8Â
(22² × 8²) ÷ (92.4 ÷ 4.2) =? × 32
? = 65% of 40% of (20 × 250) − 200
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