Question

Question 95

The table shows the time four elevtors take to travel various distances. Find, which elevator is fastest and which is slowest.

How much distance will be travelled by elevators B and C seperately in 140 sec? Who traveled more and by how much?

Answer 1

On the basis of given table,
Elevator A takes 29 s to cover 435 m.
$\therefore$ Distance covered by elevator A in $1s=\frac{435}{29}=15m$
Elevator B takes 28s to cover 448 m
Distance covereed by elevator B in $1s=\frac{448}{28}=16m$
Elevator C takes 10 s to cover 130.
$\therefore$ Distance covered by elevotor C in $1s=\frac{130}{10}=13m$
Elevator D takes 5s to cover 85m.
$\therefore$ Distance covered by elevator D in $1s=\frac{85}{5}=17m$
Hence In 1s, elevator D covers more distance as compare to elevators A B and C. So, elevator D is fastest, while elevator C covers least. Hence, elevtor C is slowest.
Now elevator B covers distance in $140s=140\times 16=2240,$
Elevtor C covers distance in $140s=140\times 13=1820m$
Elevator B covers more distance than C by$=2240-1820=420m$