Question

Ram covers a distance of 100km with variable speed during the first half of his journey his speed was 20 km per hour and during the rest of his journey his speed was 40km per hour calculate the average speed of Ram during the hall chords of his motion.​

Answer 1

Answer:

the average speed was .....,

$\frac{100}{ \frac{50}{20} + \frac{50}{40} } \\ = \frac{100 \times 40}{150} \\ = 26.67 \: \: \: km.h {}^{ - 1}$

Answer 2

❤Hola ❤

average speed = 100/ (50/20 )+ (50/40)

= 100× 40/ 150

= 26.67 km h^-1