Question

Please solve the "20th" question.

Answer 1

Answer:

Speed of bike 1 = 63 km/h

Speed of bike 2 = 70 km/h

Step-by-step explanation:

Let the speed of bike 1 be = x km/h

Then speed of bike 2 is = x+7 km/h

Speed of bikes after 2 hours =

Bike 1 = 2*x km/h = 2x km/h

Bike 2 = 2*(x+7) km/h = (2x +14) km/h

Total distance = 300 km

Distance between bikes after 2 hours = 34 km

A.T.Q.

2x + 2x + 14 + 34 = 300 km

4x +48 = 300 km

4x = (300 - 48) km

4x = 252 km

x = (252/4) km

x = 63 km

Speed of bike 1 = x = 63 km/h

Speed of bike 2 = x +7 km = 70 km/h

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Answer 2

Answer:

67 km/h

Step-by-step explanation:

120 km/h that wise comming soon the station race is completely