maths
posted by usha .
a man travelled a distance of 22km in one hour partly in a car at a speed of 30 km/hour and partly on a motorcycle at 18km/hour. find the distance travelled by him in the car

maths 
Reiny
time in car  t hrs
time on motorcycle  1  t hrs
30t + 18(1  t) = 22
solve for t, sub into 30t to get the distance in km
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