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primary 6 | Maths | Data Analysis
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Ram
Ram

primary 6 chevron_right Maths chevron_right Data analysis chevron_right Singapore

Help me to solve this problem

Date Posted: 3 years ago
Views: 196

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Priscilla Ng
Priscilla Ng's answer
788 answers (Tutor Details)
1st
1 part = 3 units because there are 3/5 blue marbles left.
So, 3 parts = 9 units and 5 parts = 15 units.

Work backwards to find the number of units for each colour.

Compare the total number of units for 'At First' and 'At the End' --> they should be equal.
Hence, the different in 1 unit is equal to 54.
Ram
Ram
3 years ago
Tks