Question
Download Solution PDFA train travels from Delhi to Amristar at a speed of 84 km/hr and returns at a speed of 86 km/hr. If it takes 170 hours for total travel, then find the distance between Delhi and Amristar. (In Km)
Answer (Detailed Solution Below)
Detailed Solution
Download Solution PDFGiven:
Speed of train = 84 km/hr
Returns at the speed of 86 km/hr
Concept used:
\(Time = {Distance \over Speed}\)
Calculation:
⇒ \(T = {D \over S1} \;+\; {D \over S2}\;\;\)
⇒ \(170 = {D \over 84} \;+\; {D \over 86}\;\;\)
⇒ \(170 = {86D \;+\; 84D \over 7224}\;\)
⇒ 170 × 7224 = 170D
⇒ D = 7224
∴ The distance between Delhi and Amristar is 7224 km.
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