how many pairs (m,n) of integers satisfy the equation 4^m=n^2+15

If a ratio is 2A:3B:4C Find A:B:C? 1)6:4:2 2)6:2:1 3)6:4:7 4)none

If good is coded as 41 then bad =

If two pipes function simultaneously the reservoir is filled in 12hrs.one pipe fills the reservoir 1

Has anyone attended cgi placement? If u could tell placement process?

A 3-digit number 4a3 is added to another 3-digit number 984 to give a 4-digit number 13b7, which is

PLEASE SEND FACE BOOK ID....

In ∆ABC, D and E are the points of sides AB and BC respectively such that DE | | AC and AD : DB =

please any one tell me HSBC pune selection process?

result when multiplying 1,2,4,3 that is 4! =24. how many values of n, is ((n!)^2+23) is a perfect sq