Question

A man moves with p km/h speed for 20 min and q km/h for next 30 min. Find the expression for his
average speed in km/h.


Plzz tell the answer with full explaination.....​

Answer 1

Answer:

the formula for speed is v-u/t.

Step-by-step explanation:

u=p km/h

v = q km /h

thus

speed = p - q/ 20+30

p - q/ 50