Question

a car moves along a straight road it covers first half distance with speed 36km/h and remaining half distance with 48 km/h calculate the average speed of the car​

Answer 1

Answer:

36-48=11

i hope it helps you

Answer 2

Answer-

average speed = total distance / total time

$=>\frac{s_{1}+s_{2} }{t_{1}+ t_{2} } \\\\=>\frac{x+x}{\frac{x}{36}+\frac{x}{54} } \\\\=>\frac{2x}{x(\frac{1}{36}+\frac{1}{54}) } \\\\=>\frac{2}{(\frac{5}{108} )} \\\\\\=>2*\frac{108}{5} \\\\=>\frac{216}{5} \\\\=>43.2km/h$ ANS

HOPE IT HELPS:)