Math, asked by uday9141, 11 months ago

26 between two station is 300 km the motorcycle start simulate simultaneously from the station and move towards each other the speed of one of them is 7 km per hour more than one of other if the distance between them after 2 hours are they start in 34 km find the speed of each motorcycle check your solution


pratyush4211: it is 26 or Distance

Answers

Answered by pratyush4211
7
Distance=300 km

Let speed of First motorcycle=x km/h
Then Distance=Speed ×Time
Distance after two Hours=2x km

Speed of Second motorcycle 7 km/h more than First.
=(x+7)km/h
Distance after 2 hour=2(x+7)

Now question Saying Distance between them is 34 km.
Means If 300-(2(x+7)+2x+34)

You can Understand by
Think A distance=100 km/h
Your speed=10 km/h
Your friend=8 km/h
Now after 2 hour
You cover 20 km
Your friend 16 km

Now between you Distance Remaining
100-(20+16)
100-36
64 km.
Now You Understand.

Let Back to Question.

Now We know.
300-(2x+2(x+7)=34
300-(2x+2x+14)=34
300-4x-14=34
-4x=34+14-300
-4x=48-300
-4x=-252
x=252/4. (- -=+)
x=63

First Motorcycle speed=63 km/h
Second=63+7=70 km/h

Checking.
After 2 hours
1st biker cover Distance=2×63=126 km
2nd biker cover
=2×70=140 km
300-(126+140)
300-266
=34

Hence
LHS=RHS

\boxed{\mathbf{1st \:motorcycle \:speed=63 km/h}}

\boxed{\mathbf{2nd \:Motorcycle \:speed=70 km/h}}
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