a-train-travelling-at-a-speed-of-75-mph-enters-a-tunnel-3-miles-long.-the-train-is--mile-long.-how-long-does-it-take-for-the-train-to-pass-through-the-tunnel-from-the-moment-the-front-enters-to-the-moment-the-rear-emerges-5e8ac8f0a107e59f202a02ba

Phone: +91 80884989467 Email: [email protected]

A train travelling at a speed of 75 mph enters a tunnel 3 miles long. The train is mile long. How long does it take for the train to pass through the tunnel from the moment the front enters to the moment the rear emerges?

2.5 min
3 min
3.2 min
3.5 min

Explanation

Total distance covered

=		7	+	1		miles
		2		4

=	15	miles.
	4

Time taken

=		15		hrs
		4 x 75

=	1	hrs
	20

=		1	x 60		min.
		20

= 3 min.