Subject
Quantitative Aptitude
Topic
Speed & Distance
Two trains start from P and Q respectively and travel towards each other at a speed of 50 km/hr and 40 km/hr respectively. By the time they meet, the first train had travelled 100 km more than the second. Find the distance between P and Q?
Two trains start from P and Q respectively and travel towards each other at a speed of 50 km/hr and 40 km/hr respectively. By the time they meet, the first train had travelled 100 km more than the second. Find the distance between P and Q?
ক)
1280 kmখ)
680 kmগ)
900 kmঘ)
624 kmঙ)
None of theseExplanation
We know that, formula: ⇒ Speed = Distance/Time. Let they meet after ‘a’ hours, Then, distance covered by Train ‘P’ = 50a, And, distance covered by Train ‘Q’ = 40a. Now, we have ⇒ 50a – 40a = 100 ⇒ a = 10 hours. Since, both these have travelled 10 hours each, Distance travelled by Train P = 50 × 10 = 500 km Distance travelled by train Q = 40 × 10 = 400kms Total distance = 500 + 400 = 900 km.Related questions
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