Question

Seenal is a baker. She buys flour in 50 kg bags. The table shows the number of 50 kg bags of flour she used to make loaves in each of the last 4 weeks. Seenal will make 2400 loaves in week 5 Each of these loaves will need 250 g of flour. Seenal works out the weekly mean number of 50 kg bags of flour used in these 5 weeks. She will use this figure for future orders. (a) Work out the weekly mean number of 50 kg bags of flour used in these 5 weeks

Answer 1

Seenal will make 2400 loaves in week 5.

Given: Weekly mean number of bags used = 9.2 bags

To find : No of loaves in week 5
Solution:

Seenal makes 2400 loaves in week 5

Quantity of flour used for 1 loaf = 250 g = 0.25 kg

Quantity of flour used for 2400 loaves = 0.25 * 2400 = 600 kg

Number of 50 kg bags of flour bought in week 5 = 600/50 = 12 bags

The number of bags in each week are:

Week 1 = 7 bags

Week 2 = 14 bags

Week 3 = 0 bags

Week 4 = 13 bags

Week 5 = 12 bags

Weekly mean number of 50 kg bags of flour used in the 5 weeks = $(7+14+0+13+12)/5$

Weekly mean number of bags used = 46/5 = 9.2 bags

Hence Seenal will make 2400 loaves in week 5.

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