Question
A giant circular wheel has a diameter of 49 metres. In
how many revolutions will the wheel cover a total of 30.8 km?Solution
Radius of the giant wheel = 49 ÷ 2 = 24.5 metres Circumference of the giant wheel = 2 × π × radius = 2 × (22/7) × 24.5 = 154 metres So, number of rotations to cover 30.8 km i.e. 30800 metres = 30800 ÷ 154 = 200
5 10 40 80 320 640
4 a b c d e
Find the value of d.
...In the question, three series I, II and III are given. Find the value of x, y and z to establish the correct relation among them and choose the correct...
6, 17, 21, 47, ?, 107
9, 21, 67, 273, 1371, ?
7Â Â Â Â Â Â Â Â Â Â Â 26Â Â Â Â Â Â Â Â Â Â Â Â Â Â 238Â Â Â Â Â Â Â Â Â Â Â Â Â Â 962Â Â Â Â Â Â Â Â Â Â Â Â Â Â Â 8522Â Â Â Â Â Â Â Â Â Â Â Â Â ...
218, 108, 160, ? , 1385.50
62 90 122 158 198 ?
14, 28, 54, 98, 154, 224
7    7       14    42   ?     840
...There are three series given below which are following with the same pattern.
Series I: 1, 12, 38, 193, 1355
Series II: 6, B, C, D, E
...
Relevant for Exams:
