Question
A train would take 20 seconds to cross a stationary
pole. If the train was 200m shorter, it would have taken 10 seconds less. Find the speed of the train.Solution
Let the original length of the train = x m ∴ Speed of the original train = x/20 m/s ∴ Length of the shorter train = x-200 ∴ speed of the shorter train = (x-200)/10 m/s Since, both the train are same their speed are also same ∴ (x )/20 = (x-200)/10 ⟹ 10 x = 20 x- 4,000 10 x =4,000 x = 400 ∴ Speed = x/20 =400/20 = 20m/s
More Time and distance Questions
- Select the number from among the given options that can replace the question mark (?) in the following series.
17, 18, 22, 31, 47, ___ - Which letter and number cluster will replace the question mark (?) to complete the given series?
LT6, KU12, IW24, FZ48, ____ - A series is given with one term missing. Choose the correct alternatives from the given ones that will complete the series.
57, 59, 56, 61, 54, ___ - Which letter-cluster will replace the question mark (?) in the following series?
RGV, UME, ?, AYW, DEF - Which letter-cluster will replace the question mark (?) in the following series?
NPQR, OORQ, PNSP, ____, RLUN
Relevant for Exams:
