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14 October, 12:16

6 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.

week

1

2

3

4

number of bags of flour

7

14

00

13

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.

(5)

+4
Answers (1)
  1. 14 October, 12:38
    0
    Weekly mean number of bags used = 9.2 bags

    Step-by-step explanation:

    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

    Therefore, the summary of the number of bags used in each week is:

    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
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