ix) A motorist covers first 50 km of his journey at a speed of 40 km/hr and the remaining 70 km at a speed of 60 k /hr. Find:
a) The total time taken to complete the journey
b) His average speed
Answers
Answered by
1
Step-by-step explanation:
Time taken =distance/speed
T1=50/40,T2=70/60
total time145 min
AVG sp3ed can be calculated by total distance /total time
Answered by
0
Step-by-step explanation:
NOW!!
AS; time =distance/speed
so_ let D1= 50 km
S1 =40km/hr
D2=70 km
S1 =60km
T1= D1/S1
T2=D2/S2 further calculation are solved by me on page..
hope this helps you
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