Question

9.3 person A, B and C covers a distance at 10 km/hr ,12 km/hr and 15 km/hr. the average speed
is:
A] 11 km/h
B] 12 km/h
C] 7 km/h
D] 13 km/h​

Answer 1

Answer:

Step-by-step explanation:

Average Speed = (3xyz)/(xy + yz + zx)

= (3 x 10 x 12 x 15)/(120 + 150 +

180)

=> 12 K/hr

Hope this helps you buddy!!!

Answer 2

Step-by-step explanation:

average speed = (3xyz)/(xy+yz+zx)

= (3×10×12×15)/(120+150+180)

=12km/h

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