Question

a aeroplane covers 2400 km in 4 hours average speed

Answer 1

it should be 600 km per hours

Answer 2

*Question:—

A aeroplane covers 2400 km in 4 hours average speed.

*Answer:—

Speed of plane=v

speed of wind= u

→ v + u = 2400/4 = 600 ________(1)

and

→ v - u = 2400/6 = 400 ________(2)

Adding (1) and (2),

→ 600 + 400

→ 1000

We get,

v = 1000/2 = 500 kmph

Note that :-

Here kmph means Kilometre Per Hour

• → Km = Kilometre
• → P = Per
• → H = Hour

Hope it helps you

$@vikramjeeth$