1) A second hand car costs £2400. The price falls by 45% when it is sold again. How much is it sold for?
2) The bill for a meal came to £65.40 plus 15% service charge. What was the total bill?
3) A woman buys a house for £62K. Ten years later she sells it for a 30% profit. How much does she sell the house for?
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1) An antique clocks price increases by 40% it now costs £112. What was it worth?
2) Since christmas bobs weight increased by 18%. He weighs 73.16kg, what was his weight by christmas?
3) A salesperson is offered a rise of 12%. She will now earn £268.80 weekly. How much did she get before her rise?
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You get the idea, there are 18 questions on each side of the sheet and I'm struggling. Can someone please explain in the detail the answers to these?
Or is there a way I can simply work these out using my scientific calculator?
Thanks
for the first one:
45% = 45/100
2400/ 100 = 24
24 * 45 = 1080
2400 – 1080 = £1320
Basically, % is divide 10 so for finding the percentage of something, divide by 100 and times by the actual percent( 20% of 500 = 500 divide 100 is 5 times by 20 is 100. 20% of 500 = 100)
Hope it helps!!!! =)
Oh and..
Scientific Calculator =
45% of 200
45% x 100
{ 1 comment… read it below or add one }
Very simple once you know what to do. For example, question 3. All you do is the percentage divided by 100, times the amount. The sum would be; 30 divided by 100 x 62,000=18,600. You then add the 18,600 to the original amount, (62K) and you get 80,600.
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