Time and Distance

A person crosses a 600 m long street in 5 minutes. What is his speed in km per hour?

A 3.6

B 7.2

C 8.4

D 10

ANS:B - 7.2

Speed =		600	m/sec.
		5 x 60

= 2 m/sec. Converting m/sec to km/hr (see important formulas section)

=		2 x	18		km/hr
			5

= 7.2 km/hr.

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