Question

Question 9.
A shot travels 90 m in 1 second. How long will it take to go 225 m?
(a) 2 seconds
(b) 2.5 seconds
(c) 4 seconds
(d) 3.5 seconds.​

Answer 1

Answer:

Speed =90km/hr=90×

18

5

=25m/sec

Distance covered = Length of train + Length of platform

=(120+230)metres=350metres

Time taken =

25

350

=14seconds

Answer 2

Answer:

(b) 2.5 seconds

Step-by-step explanation:

If it travels 90 m in 1 s, it travels 1 m in 1/90 s.

So, 225 m is covered in 225x1/90 = 225/90 = 2.5 s

Hope this helps!