J's answer to Doyeon's Primary 6 Maths Ratio Singapore question.
done
{{ upvoteCount }} Upvotes
clear
{{ downvoteCount * -1 }} Downvotes
Repeated Identity
Make the units the same for pink in both ratios
Red : Pink = 4 : 3 = 8 : 6
Pink : White = 2 : 5 = 6 : 15
So Red : Pink : White = 8 : 6 : 15
Red + White → 8 units + 15 units = 23 units
So 23 units = 92 beads
1 unit = 92 beads ÷ 23 = 4 beads
Number of pink beads
→ 6 units = 6 x 4
= 24
Make the units the same for pink in both ratios
Red : Pink = 4 : 3 = 8 : 6
Pink : White = 2 : 5 = 6 : 15
So Red : Pink : White = 8 : 6 : 15
Red + White → 8 units + 15 units = 23 units
So 23 units = 92 beads
1 unit = 92 beads ÷ 23 = 4 beads
Number of pink beads
→ 6 units = 6 x 4
= 24
Date Posted:
3 years ago
360 Tutoring Program