If a#b = ab – b + b^2, then 3#5 =

Question

A. 2
B. 8
C. 15
D. 21
E. 35

Kudos for a correct  solution .

balamoon · Answer

Solution -
Simply substitute 3 and 5 in equation in the place of a and b respectively.

3#5 = 3*5 - 5 + 5^2 = 15 - 5 + 25 = 35. ANS E

GMATinsight · Answer

a#b = ab – b + b^2

Replace a=3 and b = 5

3#5 = 3*5 – 5 + 5^2 = 15 - 5 + 25 = 35

Answer: Option E

TimeTraveller · Answer

a#b = ab – b + b^2
3#5 = 15 - 5 + 5^2 = 35. Ans (E).

xLUCAJx · Answer

I got answer E.

3(5)-5+5^2.

I think this question is sub-600 even though I hope its not because it was easy for me.

MBAHopeful99 · Answer

a#b = ab – b + b^2
3#5 = (3)(5)-5+5^2 = 15-5+25 = 35

E

akanksha23 · Answer

3#5= 3(5)-5+(5)^2 = 15-5+25= 35 
Option E

ashokk138 · Answer

3#5 = 15-5+25 => 35

Option E

Bunuel · Answer

800score Official Solution:

On test day, the # symbol or any other such symbol in a question will represent a function.

In this case, a#b = ab – b + b^2 is a function. Simply substitute a = 3 and b = 5 into the formula and calculate:
3#5 = 3(5) – 5 + 5^2 = 15 – 5 + 25 = 35.

The correct answer is choice (E).

preetamsaha · Answer

If a#b = ab – b + b^2, then 3#5 =?

here,a = 3 and b = 5
so,3#5 = 3(5) – 5 + 5^2 = 15 – 5 + 25 = 35.

correct answer E

If a#b = ab – b + b^2, then 3#5 =

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If a#b = ab – b + b^2, then 3#5 =

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