Find the number of positive integers n that satisfy ⌊√n⌋+⌊√4n⌋=5.
No positive integer n makes this true...
If n = 3
floor [ sqrt 3 ] + floor [ sqrt (4*3) ] = 1 + 3 = 4
If n = 4
floor [ sqrt 4] + floor [sqrt ( 4 *4) ] = 2 + 4 = 6