Question
Two trains of equal lengths take 20 seconds and 30
seconds respectively to cross a telegraph post. If the length of each train be 240 metres, in what time will they cross each other travelling in opposite direction?Solution
Speed of the first train = [240/20] m/sec = 12 m/sec Speed of the second train = [240/30] m/sec = 8 m/sec Speed = (12 + 8) m/sec = 20 m/sec Required time = (240 + 240)/20 sec = 24 sec
Select the related word/letters/number from the given alternatives.
LHX: OEA : : PFT : ?
Study the given pattern carefully and select the number that can replace the question mark (?) in it.
Find the missing number.
What will come in place of question mark [?] following the same pattern as given below?
A series is given with two terms missing. Choose the correct alternatives from the given ones that will come in the place of blanks respectively and com...
Study the given matric carefully and select the number from among the given options that can replace the question mark (?) in it.
Select the option that is related to the third number in the same way as the second number is related to the first number.
15 : 5 :: 26 : (?)
Select the combination of numbers that when placed sequentially in the blanks of the given series will complete the series.
3 _ 3 _ 5 3 3 5 _ 3 3...
