a motor boat travelling with the current covers 100km in 4 hours. when it travel against the current, it takes 5 hours to cover the same distance. find the speed of the motor boat in calm water and the speed of the current
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speed of motor with current=distance/time
=100/4=25km/h
speed of motor against current=100/5=20km/h
speed of motor=X and speed of current=y
X+y=25-----(1)
x-y=20-------(2)
from equation (1) and(2) we get
X=22.5 and y=2.5
Therefore speed of motor is 22.5km/h and that of current is 2.5km/h
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=100/4=25km/h
speed of motor against current=100/5=20km/h
speed of motor=X and speed of current=y
X+y=25-----(1)
x-y=20-------(2)
from equation (1) and(2) we get
X=22.5 and y=2.5
Therefore speed of motor is 22.5km/h and that of current is 2.5km/h
PLZ MARK IT AS BRAINLIEST
Likhith11:
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