Math, asked by Rahi39, 1 year ago

Solve this problem now, please.

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Answered by mohammadfaheem

Hope it helps
@mohammed faheem

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Answered by Jackklue

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

Jackklue: (x-8)(x+16)=0

mohammadfaheem: we dont have to find the answer we only have the write the equation

mohammadfaheem: to

Jackklue: Then how will you find the speed

Rahi39: we have to find the speed also i.e. the value of x

mohammadfaheem: read the sub heading over the prob in text book we have to represent the statement in the form of an equation

Rahi39: 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

mohammadfaheem: thats ok

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