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`((36.54)^2 - (3.46)^2)/(?)`  = 40


Options:
A .  3.308
B .  4
C .  33.08
D .  330.8
Answer: Option C

Let `((36.54)^2  - (3.46)^2)/ (x)` = 40,  then `x` = ` ((36.54)^2 - (3.46)^2)/(40)`

           = `((36.54)^2 - (3.46)^2)/(36.54 + 3.46)`

        = `(a^2 -  b^2)/(a + b)`= ( a - b) = (36.54 - 3.46)  =  33.08




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