Question

Compare each pair of grocery items and work out which option is the better value for money.

a) 5kg of potatoes for $4.95 or 7.5kg for $7.15
b) a packet of four batteries for $3.88 or a packet of ten for $9.89
c) a 500 g tin of coffee for $9 or a 150 g had for $2.99​

Answer 1

To find the better value for money between grocery items, calculate the price per unit of weight for each option and compare. The 7.5kg of potatoes, the pack of four batteries, and the 500g tin of coffee offer the best value in their respective categories.

Step-by-step explanation:

To determine which grocery items offer better value, we need to calculate the price per unit of weight for each option and then compare them.

• a) Potatoes: First option is $4.95 for 5kg which gives us $4.95 ÷ 5kg = $0.99 per kg. Second option is $7.15 for 7.5kg which gives us $7.15 ÷ 7.5kg = $0.95 per kg. Therefore, the second option offers better value.
• b) Batteries: First option is $3.88 for a pack of four batteries, which gives us $3.88 ÷ 4 = $0.97 per battery. Second option is $9.89 for a pack of ten batteries, which gives us $9.89 ÷ 10 = $0.989 per battery. Therefore, the first option offers a slightly better value.
• c) Coffee: First option is $9.00 for a 500g tin, which gives us $9.00 ÷ 500g = $0.018 per gram. Second option is $2.99 for a 150g jar, which gives us $2.99 ÷ 150g = $0.0199 per gram. Therefore, the first option offers better value for money.

In conclusion, comparing the unit prices allows for an accurate assessment of the better value between grocery items.