Two trains of total length $300$ m cross each other in $5$ s in opposite direction and in $15$ s in same direction. Sum

Question

Two trains of total length $300$ m cross each other in $5$ s in opposite direction and in $15$ s in same direction. Sum of speeds = $60$ m/s and difference = $20$ m/s. The faster train's speed is —

Accepted Answer

$40$ m/s

Answer

$20$ m/s

Answer

$30$ m/s

Answer

$50$ m/s

Two trains of total length 300300300 m cross each other in 555 s in opposite direction and in 151515 s in same direction. Sum of speeds = 606060 m/s and difference = 202020 m/s. The faster train's speed is —

Two trains of total length $300$ m cross each other in $5$ s in opposite direction and in $15$ s in same direction. Sum of speeds = $60$ m/s and difference = $20$ m/s. The faster train's speed is —