Question
Two trains of same length are running in parallel tracks
in the same direction with speed 70 km/hr and 120 km/hr respectively. The latter completely crosses the former in 36 seconds. Find the length of each train (in m).Solution
When two trains cross each other, they cover distance equal to the sum of their lengths with relative speed. Let's take length of each train = x So, total length of both trains = 2x Relative speed = (120 – 70) × (5/18) = 125/9 m/sec. ∴ Total length = Time × Relative speed ⇒ 2x = (36 × 125)/9 ⇒ x = 250 m
A solution turns blue litmus red, its PH is likely to be?
Which enzyme is correctly paired with its function?
Which of the following is NOT a symptom of Amoebiasis?
Which is the largest part of the human brain?
What are the respiratory organs of insects?
The shared terminal duct for the reproductive and urinary systems in males is:
Given below are two statements :
Statement I :
Whisky, brandy and rum are produced without distillation of the fermented broth.
Sta...
Bryophytes differ from pteridophytes in that they are:
Hemoglobin has the highest affinity with which gas?
The primary function of RNA is: