Time And Distance

Vedic Maths trick to Find Time And Distance Problems.

A train during its journey travel for 1 hr. at 13 km/hr. for 2 hr. at 30 km/hr. and for 3 hr. at 48 km/hr. Find the average speed of train.

First speed = v1 = 13 km/hr. ; for 1 hr. = a

second speed = v2 = 30 km/hr. ; for 2 hr. = b

last speed = v3 = 48 km/hr. ; for 3 hr. = c

Average speed = (v1a + v2b + v3) / (a + b + c)

= (13 * 1 + 30 * 2 + 48 * 3) / (1 + 2 + 3)

= (13 + 60 + 144) / 6

= 217 / 6

= 361/6

Average speed of train 361/6 km/hr.