Holaa!!!!!
plz answer to above 9th question with explaination
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Answered by
1
Explanation:
let d bet the total distance travelled by the car
now
50 = d/2t
t = d /100.... (1)
40 = d/2t1
t1 = d/80... (2)
total time T = t1+t
T = d/100+d/80
T = (4d+5d)/400
T = 9d/400
total distance = d
average speed = d/T
= d/(9d/400)
= 400/9
= 44.4 kmph
Answered by
3
Hii ☺️
you are welcome in May and
let total distance be x
a.v = x/x/100+x/80
a.v = 20x/x/5 + x/4
a.v = 400x/9x
a.v = 44.4
_____/\____☕
Hope it may helps you✊✌️
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