Symbiosis National Aptitude Test SNAP 2015 Paper

Here, three–digits number = XY5
XY5 × Z = X215
So, Z can take value 1, 3, 5, 7 and 9.
But only 9 satisfies it, then X = 1, Y = 3 and Z = 9
135 × 9 = 1215
∴ Value of X + Y + Z = 1 + 3 + 9 = 13