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| Math Central | Quandaries & Queries |
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Question from Annie, a student: I'm trying to follow a diet plan. The diet says I should have a 125ml tub of natural low fat bio yogurt. The only problem is, the yogurt pot lists its weight as 150g (with a large 'e' after it). Can you tell me how much of the yogurt pot I'm suppost to have please, or give me a conversion chart to change from g to ml for natural bio yogurt? Many thanks, Annie. |
Hi Annie.
My understanding is that the density of yoghurt is about 250 g per cup. Since a cup is about 237 ml, this means that 125 ml of yoghurt would be (250 g/ cup)(1 cup/236 ml)(125 ml). All the units cancel except grams, so you should limit yourself to (250 
125) / 236 = 132 grams of yoghurt.
This is 132/150 = 88% of your yoghurt pot.
Hope this helps,
Stephen La Rocque.
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