A man runs round a circular field of radius 50 m at the speed of 12 km/hr. What is the time taken by the man to take twenty rounds of the field?
(a)
30 min
(b)
32 min
(c)
34 min
(d)
None of these
A man runs round a circular field of radius 50 m at the speed of 12 km/hr. What is the time taken by the man to take twenty rounds of the field?
(a)
30 min
(b)
32 min
(c)
34 min
(d)
None of these
Question ID - 50495 | SaraNextGen Top Answer
A man runs round a circular field of radius 50 m at the speed of 12 km/hr. What is the time taken by the man to take twenty rounds of the field?
(a)
30 min
(b)
32 min
(c)
34 min
(d)
None of these
|
A man runs round a circular field of radius 50 m at the speed of 12 km/hr. What is the time taken by the man to take twenty rounds of the field? |
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|
(a) |
30 min |
(b) |
32 min |
(c) |
34 min |
(d) |
None of these |
1 Answer
127 votes
Answer Key / Explanation : (d) -
Speed = 12 km/hr = 
m/s.
Distance covered = 
m.
Time taken = 
min = 
min.
127 votes
Answer Link
127