Question
Two men start together to walk to a certain destination , one a 3 kmph and another a 3.75 kmph, he latter arrives half an hour before The former. he distance is :
Answer: Option B
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Let the distance be `x` km. Then ,
`x/3 - x/3.75 = 1/2 `
`hArr 2.5x - 2 = 3.75`
`hArr x = 3.75/0.50 = 15/2` = 7.5 km
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