Instructions

Each of the questions below consists of a question and two statements numbered I and II given below it. You have to decide whether the data provided in the statements are sufficient to answer the question. Read both the statements and--

Question 108

A train crosses another train running in the opposite direction in x seconds. What is the speed of the train ?
I. Both the trains have the same length and are running at the same speed.
II. One train crosses a pole in 5 seconds.

Solution

I : Let the length of each train be h and speed of each train be s

$$\frac{h + h}{s + s}$$ = x

=> $$\frac{h}{s}$$ = x

We cannot find, h and s individually.

Thus, I alone is not sufficient.

Similarly in II : $$\frac{h}{s}$$ = 5

Thus, II alone is not sufficient.


I & II : Combining the two equations

$$\frac{h}{s}$$ = x = 5

Thus , there are 2 variables and 1 equation.

Thus, I & II together are not sufficient.


Create a FREE account and get:

  • Banking Quant Shortcuts PDF
  • Free Banking Study Material - (15000 Questions)
  • 135+ Banking previous papers with solutions PDF
  • 100+ Online Tests for Free

cracku

Boost your Prep!

Download App