Question

please find this answer fast please​

Answer 1

Answer:

B) 54 kmph

Hope it helps!!!!!

Please mark me as brainliest.

Answer 2

Answer:

48

Step-by-step explanation:

average speed= (2×a×b)/(a+b)

=(2×60×40)/(60+40)

(2×6×4×100)/100

=2×6×4=48