Hi, I apologise for not having gone through these challenging sums with you in class.
Watch the videos for the solutions.
1. Mei Shan bought 69 kg of sugar. She packed an equal amount of sugar into 8 bags and had 4 kg of sugar left. What is the mass of sugar in each bag? Express your answer as a decimal correct to 1 decimal place. (3m)
2. A container holding liquid X weighs 4.95 kg altogether. The same container holding liquid Y
weighs 8.95 kg altogether. Liquid Y weighs twice as heavy as liquid X. Find the weight of the
empty container. (3m)
3. The total mass of 2 bags of rice and a packet of sugar is 12.25 kg. The total mass of a bag of rice and 2 packets of sugar is 8 kg. What is the mass of a packet of sugar? (4m)
After viewing the solutions, please complete your corrections (if any). Please clarify if you are still in doubt.
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