Solve this problem now, please.
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Hope it helps
@mohammed faheem
@mohammed faheem
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Let the speed be x km/hr
Distance=480 km
Time = d/s=480/x hr
When speed is 8 km less
Speed = x-8
Distance=480 ,time= 480/x-8
Therefore,480/(x-8)-480/x=3
x2-8x-128=0
x=8,-16
x=8 km/hr
Distance=480 km
Time = d/s=480/x hr
When speed is 8 km less
Speed = x-8
Distance=480 ,time= 480/x-8
Therefore,480/(x-8)-480/x=3
x2-8x-128=0
x=8,-16
x=8 km/hr
Jackklue:
(x-8)(x+16)=0
we dont have to find the answer we only have the write the equation
to
Then how will you find the speed
we have to find the speed also i.e. the value of x
read the sub heading over the prob in text book we have to represent the statement in the form of an equation
yeah... but in the exam they've asked to find the value of x also... so I didn't get a correct answer so I asked to find x
thats ok
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