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primary 6 | Maths
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Shirley Lim
Shirley Lim

primary 6 chevron_right Maths chevron_right Singapore

Appreciate any help with this qn. Thank you!

Date Posted: 4 years ago
Views: 289
snell
Snell
4 years ago
at first
g beads: 6 u
b beads: 6 u + 92
r beads: 6 u + 92 + 16 = 6 u + 108

after
g beads: 6 u
b beads: 3 u + 46
r beads: 2 u + 36

6 u + 3 u + 46 + 2 u + 36 = 907
u = 75

(a)
108 r beads than g beads

(b)
total beads
= 3x6x75 + 92 + 108 = 1550


...
Shirley Lim
Shirley Lim
4 years ago
Hi Snell, thank you for your help. May I know how to derive green beads as 6u?
snell
Snell
4 years ago
from 2/3 & 1/2

& the common multiple of 3&2 is 6
Shirley Lim
Shirley Lim
4 years ago
Thanks Snell. Sorry I don't fully understand the 6u. Hope u can help to clarify. I thought 2/3 and 1/2 are fractions of different wholes. Why their lowest common multiple equates to units for green beans?

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The solution is a bit long but hope it will help you.
Shirley Lim
Shirley Lim
4 years ago
Thank you