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If two bodies A and B start from two opposite ends of a linear track with the speed of X and Y respectively and they take x seconds and y seconds respectively to reach their opposite ends after meeting, then X/Y=[x/y]^1/2 ? How ? Shouldn't that be X/Y=[y/x]^1/2

Hi anyone care to explain the 46th question in DI regarding the population in cities? An explanation is provided but i didn't understand it.

No. of distinct terms in (1+x^2+x^4)^20

how do I solve data interpretation

sum of digits of possible 3 digit no. formed from 12345

how many ways a batsman can score 200 if he takes only 2's 4's and 6's

My x a very industrious person, wants to establish his own unit . For this he need an instant loan of rs 5,00,000 and every five year he requires an additional loan of Rs. 100,000. if he had to clear all his outstanding in 20 years and he repays the principal of the firs loan equally over the 20 years, find what amount he would have to pay as interest on his initial borrowing if the rate of interest is 10%p.a. simple interest

In a quality assessment program, 300 tests were conducted to check each of the 100 machines in a workshop thrice. 40 machines failed in first test. 25 machines failed in both first and second test. 15 machines failed in all the three tests. 20 machines failed in both second and third tests. If 10 machines failed only in the first test, how many machines failed in exactly one test? OPTIONS 1) 45 2) 35 3) 30 4) 65 5) Data insufficient

n ( > 4 ) kids are standing in a line one next to the other, such that everybody is facing north. How many kids are there? Statement 1: Number of ways in which 3 kids can be selected such that no two selected kids are standing next to each other is 10. Statement 2: If the kids are made to sit around a circular table such that one particular kid always occupies a specific seat, the number of such arrangements possible is 120.

how many number of solutions to the equations a+b+c+d = 11 where 1<= a,b,c,d <=5?