Question

A 400 meter long train moving with an average speed crosses platform in 25sec.A man crosses the same platform in 4 mints.what is speed of man (m/sec)
none
cannot be determined
1.5
1.2
1.8​

Answer 1

Answer:

cannot. be determined.

Step-by-step explanation:

let length of platform be x

speed of train be y

speed of man be z

A/q

(400+x)/25=y -1

(x/240)=z. -2

it clear that from two equation three variables can't be find.