Data sufficiency

This topic has expert replies
Legendary Member
Posts: 512
Joined: Mon Jun 18, 2012 11:31 pm
Thanked: 42 times
Followed by:20 members

Data sufficiency

by sana.noor » Wed Apr 03, 2013 9:38 pm
Three dice, each ith faces numbered from 1 through 6, were tossed onto a game board. If one of the dice turned up 4, what was the sum of the numbers that turned up on all three dice?
1) the sum of two of the numbers that turned up was 10
2) the sum of he two of the numbers that turned up was 11

B
Work hard in Silence, Let Success make the noise.

If you found my Post really helpful, then don't forget to click the Thank/follow me button. :)
Source: — Data Sufficiency |

GMAT/MBA Expert

User avatar
GMAT Instructor
Posts: 511
Joined: Wed Aug 11, 2010 9:47 am
Location: Delhi, India
Thanked: 344 times
Followed by:86 members

by Anju@Gurome » Wed Apr 03, 2013 10:01 pm
sana.noor wrote:Three dice, each of its faces numbered from 1 through 6, were tossed onto a game board. If one of the dice turned up 4, what was the sum of the numbers that turned up on all three dice?
1) the sum of two of the numbers that turned up was 10
2) the sum of he two of the numbers that turned up was 11
As one of the dice turned up 4, we need to determine the sum of the numbers that turned up on the other two dices.

Statement 1: The following combinations are possible,
  • {4, 6, 1} --> Sum = 11
    {4, 6, 2} --> Sum = 12
Not sufficient

Statement 2: As the faces are numbered from 1 to 6, only way the numbers on two faces can add to 11 is (5 + 6) = 11
Hence, the sum must be equal to (4 + 5 + 6) = 15

Sufficient

The correct answer is B.
Anju Agarwal
Quant Expert, Gurome

Backup Methods : General guide on plugging, estimation etc.
Wavy Curve Method : Solving complex inequalities in a matter of seconds.

§ GMAT with Gurome § Admissions with Gurome § Career Advising with Gurome §