BREAKING: Target Test Prep releases Brand New 2026 On Demand GMAT prep course

Redeem

NECKLACE MATHS

Expert replies
by francoisph » Fri Jun 11, 2010 2:40 pm
Hi,

Please any ideas?
a necklace is made by stringing N individual beads together in the repeating pattern red, green, white,blue,
and yellow
if the necklace design begins with a red bead and ends with a white bead, then N could equal

thks
Join the discussion
Source: — Problem Solving |

by vishubn » Fri Jun 11, 2010 3:43 pm
hi

there are two possible value to this ,

N can be multiples of (N*5)+3 , where the Number ending can be either 8 or 3 , what is the source of the question??

Vishu
KILL !! DIE !! or BEAT my FEAR !!! de@D END!!
Join the discussion

by francoisph » Fri Jun 11, 2010 3:58 pm
if the necklace design begins with a red bead and ends with a white bead, then N could equal ?

How to find n?
Join the discussion

by francoisph » Fri Jun 11, 2010 3:59 pm
A 16
B 32
C 41
D 54
E 68
Join the discussion

by jeffedwards » Fri Jun 11, 2010 7:16 pm
E - 68

For the same reason as explained by vishubn. When the question asks what a number could be, it's helpful to have the list, because there are normally multiple possible numbers that match such criteria.
Join the discussion