Question

Cyclist A travels 72 km in 9 hours and cyclist B travels 165 km in 15 hours.Find the ratio of the speeds of cyclist A and cyclist B.

Answer 1

let $V_{A}$ represent speed of cyclist A and $V_{B}$ represent speed of cyclist B
speed = distance travels/time
distance travels by A = 72 Km.
time = 9hrs.
$V_{A}$ = 72/9 = 8 Km/hr.
distance travels by B = 165 Km.
time = 15hrs.
$V_{B}$ = 165/15 = 11 Km/hr.
$V_{A}$/$V_{B}$ = 8/11

Answer 2

A: 72/9=8km/hr on avg.
B: 165/15=11km/hr on avg.
therefore the ratio of speeds of A:B::8:11