A policeman starts to chase a thief. When the thief goes

A policeman starts to chase a thief. When the thief goes 10 steps the policeman moves 8 steps. 5 steps of the policeman is equal to 7 steps of the thief. The ratio of the speeds of the policeman and the thief is

5 steps of policeman = 7 steps of thief

∴ 8 steps of policeman =	7	× 8
	5

=	56	steps of thief
	5

∴ Required ratio =	56	: 10
	5

= 56 : 50
= 28 : 25