Question

266 m A train takes 67 seconds to cross the long bridge. If the same train takes 29 seconds to

cross a board, then tell the length of the train.

(A) 200m - (Optional 1)

(B) 205 m - (Alternative 4)

(C) 203m - (Optional 3)

(D) 215 m - (Alternative 2)​

Answer 1

let the length of train = x m

speed= s m/s

(i) x/29 (ii)266+x/67

x/29 = 266 + x / 67

67x= (266×29)+29x

67x-29x = 266×29

38 x = 266 × 29

x = 266 × 29 / 38

=203

length of train =203

hope it'll help you