A car travels 288 km is 4 hours and a train travels 540 km in 6 hours. The ratio of their speeds is
(a) 5 : 4
(b) 4 : 5
(c) 5 : 6
(d) 3 : 5

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Solution

(b) 4 : 5
Speed of the car = Distance = 288 km = 72 km/hr
Time 4 hr

Speed of the train = Distance = 540 km = 90 km/hr
Time 6 hr

Ratio of their speeds = 72:90
where, 72 = 72 ÷ 18 = 4 (H.C.F. of 72 and 90 is 18.)
90 90 ÷ 18 5

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A car travels 288 km is 4 hours and a train travels 540 km in 6 hours. The ratio of their speeds is (a) 5 : 4 (b) 4 : 5 (c) 5 : 6 (d) 3 : 5

(b) 4 : 5 Speed of the car = Distance = 288 km = 72 km/hr Time 4 hr Speed of the train = Distance = 540 km = 90 km/hr Time 6 hr Ratio of their speeds = 72:90 where, 72 = 72 ​÷ 18 = 4 (H.C.F. of 72 and 90 is 18.) 90 90 ​÷ 18 5

A car travels 288 km is 4 hours and a train travels 540 km in 6 hours. The ratio of their speeds is
(a) 5 : 4
(b) 4 : 5
(c) 5 : 6
(d) 3 : 5

(b) 4 : 5
Speed of the car = Distance = 288 km = 72 km/hr
Time 4 hr

Speed of the train = Distance = 540 km = 90 km/hr
Time 6 hr

Ratio of their speeds = 72:90
where, 72 = 72 ÷ 18 = 4 (H.C.F. of 72 and 90 is 18.)
90 90 ÷ 18 5