Question
Two trains started from stations βAβ and βBβ at
same time and started travelling towards each other at speeds of 30 km/hr and 20 km/hr, respectively. At the time of their meeting, the faster train has travelled 200 km more than the slower train. Find the distance between the stations βA and βBβ.Solution
Let the distance travelled by slower train be βxβ km So, distance travelled by faster train = βx + 200β km ATQ, (x/20) = {(x + 200)/30} Or, 30x = 20x + 4000 Or, 10x = 4000 So, x = 400 Total distance between station βAβ and station βBβ = (400 + 400 + 200) = 1000 km
Select the options in which the numbers are related in the same way as are the numbers of the following set.
(541, 14, 737)
196 49 21
18 x 9
If ‘ x' is resultant of the first row, what is the resultant of the second row?
...Read the directions carefully and answer the following question.
If in the number β 9887532691 β, the even digits are shifted to the next d...
If each of the odd digits in the number ' 78343724' is decreased by 1 and each of the even digits is increased by 1, which of the following will be the ...
Consider the following number sequence:
8 5 6 7 3 6 5 1 3 5 3 1 5 6 7
How many prime numbers are present in the above sequence which are n...
How many 6s are there in the following number series which are preceded by 4 and followed by 8.
2 4 6 8 4 2 8 6 4 8 7 3 8 6 4 2 4 6 8 7 4 6 9 4
If all the digits of each number are added, the sum of which number will be the largest?
Select the number that can replace the question mark (?) in the following series. 17, 21, 30, 46, 71, ?
Four number-pairs have been given, out of which three are alike in some manner and one is different. Select the number-pair that is different.
In the following number sequence, how many such 8s are there, each of which is exactly divisible by its immediate preceding number but not divisible by...