Sweets are sold loose, or pre-packed in 120 g bags. The 120 g bags are £1.99 each. The loose sweets are £1.59 for 100g. By calculating the price per gram, determine which is better value. Show your working.​

Loose sweets

Step-by-step explanation:

pre-packed sweets (price per gram) = 1.99/120 = £0.016583/g (5 s.f.)

loose sweets (price per gram) = £1.59/100 = £0.0158/g

By comparison, we can tell that the price per gram for loose sweets is less than that of the price per gram of pre-packed sweets. Therefore, loose sweets are of a better value.

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step-by-step explanation:

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