Caseyâ€™s total score

Expert replies

GmatKiss: Legendary Member; Posts: 2789; Joined: Tue Jul 26, 2011 12:19 amFollowed by: 43 members; Location: Chennai, India; Thanked: 206 times; GMAT Score:640

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

Like this post

Source: Beat The GMAT — Data Sufficiency | Sat Oct 15, 2011 8:39 am

GmatKiss: Legendary Member; Posts: 2789; Joined: Tue Jul 26, 2011 12:19 amFollowed by: 43 members; Location: Chennai, India; Thanked: 206 times; GMAT Score:640

by GmatKiss » Sat Oct 15, 2011 9:09 am

IMO:C

Like this post

vaibhavgupta: Master | Next Rank: 500 Posts; Posts: 416; Joined: Tue Aug 30, 2011 2:18 pmFollowed by: 9 members; Location: Delhi, India; Thanked: 13 times

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.

Like this post

mukgera: Senior | Next Rank: 100 Posts; Posts: 77; Joined: Tue Aug 16, 2011 11:49 pm; Thanked: 3 times

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

Like this post

saketk: Legendary Member; Posts: 608; Joined: Sun Jun 19, 2011 11:16 amFollowed by: 8 members; Thanked: 37 times

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

Like this post

Post new topic Post Reply

• Page 1 of 1

GMAT Course Reviews

560 reviews

1168 reviews

431 reviews

359 reviews

147 reviews

5/5

5 Star (560 Reviews)

"Target Test Prep is the closest to the official version of the GMAT exam, about 99% accuracy in terms of the quality and quantity of information. The course has excellently created singular sets of focused lessons and tests for every possible topic that one could come across in the official GMAT exam."

"The TTP course maximizes the efficiency of the time you spend studying. It will take time and effort but I could almost guarantee that if you complete the course exactly as it is laid out you will get an amazing score. They also have a very responsive team willing to help with any questions you might have."

"TTP has two things that I think no other test prep company offers: A teaching approach that reinforces understanding and an attitude that will give you the mental preparedness needed to succeed on the test. TTP gives you a deep understanding of the concept you need to know while teaching you how to think."

Write a Review