Question
A man can reach a certain place in 30 hours. If he reduces his speed by `1/15`th, he goes 10 km less in that time . Find his speed.
Answer: Option B
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Let the speed be `x` km/hr. Then .
`30 x - 30 xx 14/15 x = 10 hArr 2x = 10 hArr x `= 5 km/hr.
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