Question

A 60 kg man runs up a staircase in 12 seconds while a 50 kg man runs up the same staircase in 11,

seconds, the ratio of the rate of doing their work is

[a] 6 : 5 [b] 12 : 11 [c] 11 : 10 [d] 10 : 11


reason​

Answer 1

Answer:

c. number is the right answer

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