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| Math Central | Quandaries & Queries |
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Question from puchu: A student was saving an average of £2 per week for 25 weeks. He then found a part time job and after total of 45 weeks his average savings rose to £9 per week |
Hi,
Suppose he saved £x for the 20 weeks in the new job. His total savings would then be $25 \times £2 + 20 \times £x.$ What would his average savings be over the 45 weeks? Solve for x.
Penny
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