"Do you want to buy more? It is cheaper if you buy more.", the young lady managing the makeshift stall selling Chinese New Year goodies outside a 7-11 type store in Singapore promised.
I looked at the sign that shows the price. It states that 100g of the organic nuts cost $3.80 while 500g of the nuts cost $19.
Show, with appropriate calculations, if it is true that it is "cheaper if you buy more".
|I bought 100g of the organic nuts to snack on between meals.|
This is likely a Primary 4 problem. In Singapore, Primary 4 students are expected to achieve this standard for the unit on money.
|multiplication and division of money in decimal notation,
• solving word problems involving the 4 operations of money in decimal notation.