Question

Work out the weekly mean number of 50 kg bags of flour used in these 5 weeks

Kim is a baker, she buys flour in 50kg bags.
weeks 1 2 3 4

NO of bags of flour 7 14 8 13

Kim will make 2400 loaves in week 5
Each of these loaves will need 250g of lour

Kim works out weekly mean number of 50kg bags of flour used in these 5 weeks.
she will use the figure for future orders.

Answer 1

Weekly Mean Number of 50-kg bags =10.8 bags

Explanation:

In Week 1, Kim uses 7 50kg bags of flour

In Week 2, Kim uses 14 50kg bags of flour

In Week 3, Kim uses 8 X 50kg bags of flour

In Week 4, Kim uses 13 X 50kg bags of flour

In Week 5, Kim will make 2400 loaves.

Each of these loaves will need 250g of flour.

Total Mass of flour that will be used =2400 X 250=600,000 grams

`600,000$ grams=600,000 / 1000$ kg =600kg\\Number of 50-kg bags =600 /$ 50 =12 bags`

In Week 5, Kim will use 12 bags.

Therefore:

Weekly Mean number of 50kg bags of flour used in these 5 weeks.

`=(7+14+8+13+12)/(5)\\\\ =(54)/(5)\\\\=10.8 \\ \approx 11$ bags`