SOLUTION: If 40-16=2½,then 75-30=2½=100-?=2½ . Please solve this question sir.

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Question 979312: If 40-16=2½,then 75-30=2½=100-?=2½ .
Please solve this question sir.
Answer by MathLover1(20850) About Me  (Show Source):
You can put this solution on YOUR website!

If 40-16=2%281%2F2%29,then 75-30=2%281%2F2%29: means 40%2F75=16%2F30=>40%2A30=16%2A75=>1200=1200
then 75-30=2%281%2F2%29 and 100-x=2%281%2F2%29, must be
75%2F100=30%2Fx
75x=3000
x=40
so, you have 40-16=2%281%2F2%29=75-30=2%281%2F2%29=100-40=2%281%2F2%29