Question

Find the distance moved by a car at an average speed of 60km/hour for 4 and half hours​

Answer 1

Answer:

270 km is the correct answer

by multiplying of 4.5*60

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Answer 2

Answer:

Average speed = 48kmph

Concept used:

When equal distance is travelled with 2 different speed x and y,

then the average speed = 2xy/(x + y)

Here, x = 60 kmph and y is other speed

2 × 60 × y/(60 + y) = 48

⇒ y = 40 kmph