an escalator takes a man to his destination in 6 seconds.if he walks , he takes 4 seconds to reach his destination.if he walks on the escalator with the same speed he reaches the destination in second is
a)4.2
b)5
c)2.4
d)10
if u know this answer plz answer fast
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a man to his destination in 6 seconds.if he walks , he takes 4 seconds to reach his destination.if he walks on the escalator with the same speed he reaches the destination in second is
a)4.2
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