SOLUTION: 1.RAHUL TRAVELLED DISTANCE OF 185KM IN FOUR HOURS PARTLY IN HIS CAR AT SPEED OF 50KM/HR AND PARTLY BY BUS AT 40 KM/HR. FIND THE DISTANCE TRAVELLED BY HIM IN HIS CAR.
2.A PIPE CAN
Algebra ->
Linear-equations
-> SOLUTION: 1.RAHUL TRAVELLED DISTANCE OF 185KM IN FOUR HOURS PARTLY IN HIS CAR AT SPEED OF 50KM/HR AND PARTLY BY BUS AT 40 KM/HR. FIND THE DISTANCE TRAVELLED BY HIM IN HIS CAR.
2.A PIPE CAN
Log On
Question 1038729: 1.RAHUL TRAVELLED DISTANCE OF 185KM IN FOUR HOURS PARTLY IN HIS CAR AT SPEED OF 50KM/HR AND PARTLY BY BUS AT 40 KM/HR. FIND THE DISTANCE TRAVELLED BY HIM IN HIS CAR.
2.A PIPE CAN FILL A TANK IN 1.5 HRS AND ANOTHER PIPE CAN EMPTY IT IN 1.75 HRS. IN HOW MUCH TIME WILL THE TANK BE HALF FILLED. Answer by jorel555(1290) (Show Source):
You can put this solution on YOUR website! 1)Let c=hours by car and b=hours by bus. Then
50c+40(4-c)=185
50c+160-40c=185
10c=25
c=2.5
b=1.5!!!!!!!
2)Assuming the pipes are running simultaneously, then:
n/1.5-n/1.75=.5
1.75n-1.5n=1.3125
.25n=1.3125
n=5.25 hours before the tank is half full!!!!!!!!!!!!
(