A and b starting from the same place at the same time are at a distance of 218 kms after driving for 4 hours in the opposite direction.If a speed is 2.5km/h more than b what is b speed
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Answer:
26 km/hr
Step-by-step explanation:
Let the speed of B be x km/hr
∴ speed of A = x + 2.5 km/hr [ speed of A is 2.5km/h more than B]
When they are travelling in opposite direction
Distance travelled by A = Speed x Time
= (x + 2.5) x 4
Distance Travelled by B = Speed x Time
= 4x
Total distance travelled by both = 218
∴ (2.5 + x) x 4 + 4x = 218
10 + 4x + 4x = 218
8x = 208
x = 26
Hence speed of B is 26 km/hr
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