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Casey’s total score

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Casey’s total score

by GmatKiss » Sat Oct 15, 2011 8:39 am
What was Casey's total score for eighteen holes of golf?

(1) Casey's score for the first nine holes was 13 less than his score for the last nine holes.
(2) Twice Casey's score for the last nine holes was 58 more than his score for the first nine holes.

OA after sometime
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Source: — Data Sufficiency |
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by GmatKiss » Sat Oct 15, 2011 9:09 am
IMO:C
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by vaibhavgupta » Sat Oct 15, 2011 9:28 pm
GmatKiss wrote:What was Casey's total score for eighteen holes of golf?

(1) Casey's score for the first nine holes was 13 less than his score for the last nine holes.
(2) Twice Casey's score for the last nine holes was 58 more than his score for the first nine holes.

OA after sometime
Let x be the total score for the first 9 holes and y be the total score for last 9 holes.
then
1) x+13=y
2) x+58=2y
using them together x=32 and y=45 and combined 77. Hence C.
:)
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by mukgera » Sat Oct 15, 2011 9:34 pm
IMO C
GmatKiss wrote:What was Casey's total score for eighteen holes of golf?

(1) Casey's score for the first nine holes was 13 less than his score for the last nine holes.
(2) Twice Casey's score for the last nine holes was 58 more than his score for the first nine holes.

OA after sometime
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by saketk » Tue Oct 18, 2011 4:06 am
GmatKiss wrote:What was Casey's total score for eighteen holes of golf?

(1) Casey's score for the first nine holes was 13 less than his score for the last nine holes.
(2) Twice Casey's score for the last nine holes was 58 more than his score for the first nine holes.

OA after sometime
1. x + 13 = y
x = y - 13
INSUFFICIENT

2. 2y - 58= x
INSUFFICIENT

Combine both. we get
2y - 58 = y - 13
y = 45

and corresponding value of x = 32

OPTION C
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