A train covers a certain distance in 210 minutes at a speed

A train covers a certain distance in 210 minutes at a speed of 60 kmph. The time taken by the train, to cover the same distance at a speed of 80 kmph is :

Speed of train = 60 kmph
Time = 210 minutes

=	210	hours
	60

or	7	hours
	2

Distance covered = 60 ×	7	= 210 km
	2

Time taken at 80 kmph =	210	=	21	hours
	80		8

= 2	5	hours
	8

Second Method :

Here, S₁ 60, t₁ =	210	hrs
	60

S₂ = 80, t₂ = ?
S₁t₁ = S₂t₂

60 ×	210	= 80 × t₂
	60

t₂ = 2	5	hrs
	8