in a km race, abi beats manju by 50 m or 10sec. what is the ratio of their speeds?
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Lets convert the km to m first.
1 × 1000 = 1000m
Abi takes t seconds to cover 1000 m.
Manju will take the same t seconds to cover (1000 - 50) = 950 m
Speed of Abi = 1000/t
Speed of Manju = 950/t
The ratio of their speeds is :
Abi : Manju
= 1000/t ÷ 950 /t
= 1000/950
= 20/19
= 20 : 19
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