Question
A train 'B' speeding with 100 kmph crosses another train
C, running in the same direction, in 2 mins. If the length of the train B and C be 150m and 250m respectively, what is the speed of the train C (in km/ph) ?Solution
Given, speed of train B = 100 km/ph Let speed of train C = x km/ph length of train B = 150 m = 0.15 km length of train C = 250 m = 0.25 km time taken = 2 minutes = 2/60 = 1/30 time taken = (length train A + length train B)/( difference i n speed) = 0.4 / (100−x) 1/30 = 0.4 / (100−x) 100 − x = 0.4 × 30 100 − 12 = x X (speed of the train C) = 88 km/ph
A windmill rotates 60 times in 1.5 hours. Find the number of rotations made by the windmill in 36 minutes.
In the venn diagram given below, how many cricketers are not artist?
DSL is used in _________ connections.
The quality of an MP3 file depends largely on the .......................................... .
What will come in the place of question mark to make F is mother of H, in expression C # D $ E @ F & G ? H?
Which of the following code can be understood by Computers?
Which component of a computer is responsible for performing calculations and logical operations?
- The price of a product is first reduced by 15% and then increased by 25%. If the final price is ₹690, then find the original cost price.
यदि किसी संख्या का 20%, 120 हो तो उसी संख्या का 120% होगा -
- The product of two numbers is 15.75. If one of the numbers is 4.5, then find the other number.
