SOLUTION: As a promotional offer, a new hair salon offered its services at 20% discount for the first 2 weeks. Janice and her friends took advantage of the bargain and had their hair done f

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Question 1143033: As a promotional offer, a new hair salon offered its services at 20% discount for the first 2
weeks. Janice and her friends took advantage of the bargain and had their hair done for a
total amount of £100. Show your working.
a) What were the total savings made?
b)Work out the average savings amount if 4 hairdos were done?
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Let +C+ = cost before discount
+100+=+%28+1+-+.2+%29%2AC+
+100+=+.8C+
+C+=+125+
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(a)
+125+-+100+=+25+
25 is the savings
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(b)
+25%2F4+=+6.25+
6.25 is the average savings