A man walks up a stationary escalator in 90 sec.When this man stands on a moving escalator he goes up in 60 sec.The time taken by the man to walk up the moving escalator is

A man walks up a stationary escalator in 90 sec.When this man stands o

1.	A man walks up a stationary escalator in 90 sec.When this man stands on a moving escalator he goes up in 60 sec.The time taken by the man to walk up the moving escalator is
Answer» 30 s 45 s 36 s 48 s Answer :C

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A man walks up a stationary escalator in 90 sec.When this man stands on a moving escalator he goes up in 60 sec.The time taken by the man to walk up the moving escalator is

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