Question

Ram goes a to



b.If he takes 1/4 time less than to cover the same distance when run at normal speed by what % he has incresed the speed ?

Answer 1

let distance =x

and time=t

s=x/t

when he run at speed

t'=t-1/4t

t'=3/4t

distance remain same

s*t=s'*3/4t

s'=4/3s

%increase in speed=33.3%

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