Question
A giant circular wheel has a diameter of 28 metres. In
how many revolutions will the wheel cover a total of 11 km?Solution
Radius of the giant wheel = 28 ÷ 2 = 14 metres Circumference of the giant wheel = 2 × π × radius = 2 × (22/7) × 14 = 88 metres So, number of rotations to cover 11 km i.e. 11000 metres = 11000 ÷ 88 = 125
More Mensuration Questions
66, 17, 81, ?, 100, -21
64, 32, ? , 48, 96, 240
What will come in place of (?) Question mark in the given number series.
10, 15, 30, 75, 225, 787.5, ?
What will come in place of the question mark (?) in the following series?
28, 45, 75, 118, 174, ?1221, 1100, 1000, 919, ?
...10, ?, 50, 100, 250, 500
120, 130, 145, 165, ?, 220
580 557 528 497 ? 419
230 192 172 ? 122 100
...60, 120, ?, 160, 32, 192
