How much time will be taken to cover 20 m at a speed of 20 cm per second? (a)20 sec(b)200 sec(c)2000 sec(d)20 min
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Time taken to cover 20 cm = 1 sec.
Time taken to cover 1 cm = 1/20 sec.
1 metre = 100 cm,
20 metre = 20 × 100 cm.
= 2000 cm.
Time taken to cover 20 m = 1/20 × 2000
= 200 sec.
Therefore, time taken to cover 20 m is 200 sec.
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How much time will be taken to cover 20 m at a speed of 20 cm per second? (a)20 sec(b)200 sec(c)2000 sec(d)20 min
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