Find the value of X,Y and Z in the following
X X X X
Y Y Y Y
Z Z Z Z
................
Y X X X Z
X=9 , Y=2; Z=8
X=9 , Y=1; Z=9
X=8 , Y=1; Z=8
X=9 , Y=1; Z=8
Next Question
The smallest number which when diminished by 7, is divisible 12, 16, 18, 21 and 28 is: