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If q is equal to one-half of the sum 6, 7, 5, and q, then q =

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If q is equal to one-half of the sum 6, 7, 5, and q, then q =  [#permalink]

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New post 15 Mar 2018, 00:25
1
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A
B
C
D
E

Difficulty:

  15% (low)

Question Stats:

85% (00:42) correct 15% (00:24) wrong based on 68 sessions

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Re: If q is equal to one-half of the sum 6, 7, 5, and q, then q =  [#permalink]

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New post 15 Mar 2018, 00:52
Here,
(6+7+5+q)1/2=q
So,
(18+q)1/2=q
Now, we can put value of q from options
suppose, q=18
then,
(18+18)1/2=q
36/2=q
18=q
-----
therefore, q=18
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If q is equal to one-half of the sum 6, 7, 5, and q, then q =  [#permalink]

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New post 15 Mar 2018, 10:08
Bunuel wrote:
If q is equal to one-half of the sum 6, 7, 5, and q, then q =

A. 9

B. 12

C. 18

D. 27

E. 36

One the equation is set up, checking options is accurate and probably fast. You can also solve.

q is equal to one-half of the sum 6, 7, 5, and q:

\((6+7+5+q)
* (\frac{1}{2})=q\)
\(18 + q = 2q\)
\(q = 18\)


Answer C
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Re: If q is equal to one-half of the sum 6, 7, 5, and q, then q =  [#permalink]

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New post 15 Mar 2018, 20:26
q= \(\frac{1}{2}\)*(6 + 7 + 5 + q)

Solving q= 18

Answer: C.
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Re: If q is equal to one-half of the sum 6, 7, 5, and q, then q =  [#permalink]

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New post 16 Mar 2018, 23:01
Bunuel wrote:
If q is equal to one-half of the sum 6, 7, 5, and q, then q =

A. 9

B. 12

C. 18

D. 27

E. 36



Given : q = (6 + 7 + 5 + q)/2

2q = 18 + q

q = 18

(C)
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Re: If q is equal to one-half of the sum 6, 7, 5, and q, then q =  [#permalink]

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New post 19 Mar 2018, 06:39
Bunuel wrote:
If q is equal to one-half of the sum 6, 7, 5, and q, then q =

A. 9

B. 12

C. 18

D. 27

E. 36



q = (1/2)(6 + 7 + 5 + q)

q = 9 + q/2

Multiplying by 2 we have:

2q = 18 + q

q = 18

Answer: C
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Re: If q is equal to one-half of the sum 6, 7, 5, and q, then q =  [#permalink]

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New post 25 Mar 2018, 01:54
If q is one-half of 6,7,5 and q, then 6+7+5 should be equal to q.
-> 6+7+5 = 18
-> Ans: (c)
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Re: If q is equal to one-half of the sum 6, 7, 5, and q, then q = &nbs [#permalink] 25 Mar 2018, 01:54
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