Question

An engine, approaching a tunnel at constant speed,
whistles twice at interval of 10 min. The driver hears
the echo of the first 20 s after its sounding; whereas he
hears the echo of the second, 16 s after its sounding
(speed of sound = 358.8 ms-'). The speed of the train
is-
(a) 2.4 ms-
(b) 0.6 ms-
(c) 12 ms!
(d) 1.2 ms-
​

Answer 1

Answer:

a

Explanation:

oooooooooooooooooooooooooo