its given that 2 numbers are there. we define an operation $ yielding another number X$Y such that following condition:
X$X=0
Also for all X,X$(Y$Z)=X$Y+Z. Find value of 2012$0+2012$1912
a)2112 b)100 c)5936 d)cannot be determine

• since, x$x=0, so $ must be -,
  x$(y$z)=x$y+z is x-(y-z)= x-y+z,
  so 2012-0+2012-1912=2112
• 11 years agoHelpfull: Yes(30) No(0)
• As $ symbol must be -1 to satisfy the condition X$(Y$Z)=X$Y+Z
• 11 years agoHelpfull: Yes(1) No(1)