Fractions & Percentages Worksheet With Answer Key Page 15
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16Fractions & Percentages
Solutions (calculating percentages)
1. 0.87 × 560 = £487.20
2. 0.10 × 11.40 = 1.14
Therefore you will be saving £1.14
3. 395 × 0.20 = 79
You therefore save £79 and so pay £395 - £79 = £316
4. 7 × 0.09 = 0.63
Therefore 0.63km is in need of repair.
5. 699 × 17.5% = 699 × 0.175 = 122.325
Hence the total amount of VAT is £122.33
Therefore the total price of the computer is
699 + 122.33 = £821.33
Solutions (calculating percentage increases/decreases)
1. Total number of members: 45,000
Women younger than 40: 4500
Men younger than 40:
12800
Women older than 40:
7900
Total:
25,200
If the remaining are men over 40, this means:
45,000 – 25,200 = 19,800 are men over 40.
If the number of men over 40 increases by 3% the next year, this
means that the alumni now has:
19,800 × 0.03 = 594
19,800 + 594 = 20, 394 men over 40.
15
Dr. Mundeep Gill
Effective Learning Advice Service
elas@brunel.ac.uk
LC019
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