Level 3 At a supermarket, packets of cocoa beans are sold only in boxes of 2. The cost of each box is $7.90. The mass of each packet of cocoa beans is 1.6 kg.
What is the total mass of 9 such packets of cocoa beans?
How much would 6 such packets of cocoa beans cost?
Level 3
Two different brands of detergent powder are on promotion in a supermarket. Ms Ong wants to buy 30 kg of detergent. How much will she save if she buys Brand B detergent powder instead of Brand A?
Level 3
Two different brands of detergent powder are on promotion in a supermarket. Ms Ong wants to buy 30 kg of detergent. How much will she save if she buys Brand B detergent powder instead of Brand A?
Level 3 A basket containing 3 persimmons had a total mass of 7 kg. When 4 more persimmons were added into the basket, the total mass became 14.6 kg. Find the mass of the empty basket.
Level 3
Fion used 47 of the flour to bake some bread. She used 14 of the flour to bake some muffins. Given that Fion was left with 450 g of flour, how much flour did she have at first?
