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anonymous
 5 years ago
Running 4/3 of his usual speed, A person improves his timing by 10 minutes. Find his usual time to cover the distance.
anonymous
 5 years ago
Running 4/3 of his usual speed, A person improves his timing by 10 minutes. Find his usual time to cover the distance.

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amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0(4/3)Ns = d/(Nt10) Ns = d/(Nt) (4/3)d/(Nt) = d/(Nt10)

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0cross multiply (4/3)d(Nt10) = d(Nt) d(Nt(4)  40)  = d(Nt) ; /d and *3 3 Nt(4)  40 = Nt(3) Nt(43) = 40

amistre64
 5 years ago
Best ResponseYou've already chosen the best response.0his Normalt time is 40 minutes

anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0yes....... since time is inversely propotional to speed let his earlier time be x min so current time=3x/4 min =>x (3x/4)= 10 =>x=40
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