Ask Singapore Homework?
Upload a photo of a Singapore homework and someone will email you the solution for free.
Question
primary 6 | Maths
| Ratio
2 Answers Below
Anyone can contribute an answer, even non-tutors.
Alice has a bottle of red, pink and white beads. The ratio of the number of red beads to the number of pink beads is 4:3 The ratio of the number of pink beads to the number of white beads is 2 : 5. If Alice has a total of 92 red and white beads, how many pink beads are there?
See 2 Answers
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