What is the value of 6y + 2x^2 ?

Question

(1) y = 14

(2) x^2 + 3y = 18

Kudos for a correct  solution .

Skywalker18 · Answer

1. y=14
we have no idea about x
Not sufficient

2. x^2 + 3y=18
Multiplying equation by 2 , we get
2*x^2 + 6y = 36
Sufficient
Answer B

HKD1710 · Answer

6y + 2*x^2? here, we need the value of two variables x&y.

1) this gives value of only one variable which is y. so insuffiecient because we need x as well.

2) x^2 + 3y = 18, this equation has both x & y in it. Multiplying the equation by 2 on both the sides makes the equation exactly in a format of the value we require i.e.
 2*(x^2 + 3y = 18) = 18*2
 2*x^2 + 6y = 36 --- sufficient.
So "B" is the correct answer.

lipsi18 · Answer

2x^2+6y=?; taking 2 common=>2(X^2+3Y)=?

1. Y is given but we can answer as we dont know value of x. Insufficient.
2. X^2+3Y =given, so we now the answer of the term as 36. Sufficient.

Hence Answer is B.

Thanks.

padman777 · Answer

initial assesment: orig cond : 2(x^2 + 3y)
likely ans is c.. but since c is too trivial, we look at a/b.

a : insuff
b: suff.

ANS :B

saikiransomala · Answer

Hi,

Option B is sufficient.

rhine29388 · Answer

we have to find the value of 6 y  + 2 x^2 
Statement 1 gives us  y  = 14
we don't have any information on  x  so insufficient
Statement 2 gives us  x^2  + 3 y  = 18
multiply by 2 we get 2 x^2  + 6 y  = 36 so sufficient
correct answer - B

bumpbot · Answer

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What is the value of 6y + 2x^2 ?

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