The ratio of speeds of a car, a train and a bus is 5:9:4. the average speed of the car, the bus and the train is 72 km/hr together. what is the average speed of the car and the train together ?
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LET THE COMMON FACTOR BE X
5X+9X+4X/3=72
18X=216
X=12
SO SPEED OF CAR=60KM/H
TRAIN=108
AVERAGE=60+108/2=168/2=84KM/H
SO AVERAGE SPEED =84KM/H
PLS MARK AS BRAINLIEST
LET THE COMMON FACTOR BE X
5X+9X+4X/3=72
18X=216
X=12
SO SPEED OF CAR=60KM/H
TRAIN=108
AVERAGE=60+108/2=168/2=84KM/H
SO AVERAGE SPEED =84KM/H
PLS MARK AS BRAINLIEST
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