[Guest]

I have a photocopier which has seven buttons, each button can reduce or enlarge the area of a printed image. The area of the copy as a percentage of the area of the original is specified on each button:

50% 75% 80% 100% 120% 125% 150%

Question: I want to make a smaller copy of a picture of a cat. I frist copy the picture by pressing the 80% button, then i copy the copy using the 50% button button. What is the area of the second copy as a percentage of the area of the original picture?

Question 2: I want to enlarge the original picture of the cat. In doing this i dont want to copy more than three times. What's the closest I can get to an enlargement that is 200% of the size of the original picture?

[Guest]

I have a photocopier which has seven buttons, each button can reduce or enlarge the area of a printed image. The area of the copy as a percentage of the area of the original is specified on each button:

50% 75% 80% 100% 120% 125% 150%

Question: I want to make a smaller copy of a picture of a cat. I frist copy the picture by pressing the 80% button, then i copy the copy using the 50% button button. What is the area of the second copy as a percentage of the area of the original picture?

Question 2: I want to enlarge the original picture of the cat. In doing this i dont want to copy more than three times. What's the closest I can get to an enlargement that is 200% of the size of the original picture?

Not sure if you should be getting homework help on this forum but...

For question 1: 40%.

For question 2: i think 16%

[Guest]

Not sure if you should be getting homework help on this forum but...

For question 1: 40%.

For question 2: i think 16%

Question 1:

100% * 80% = 80%

50% of 80% = 40%

Question 2:

125% * 125% * 125% brings you within .05%

[Guest]

Question 1:

100% * 80% = 80%

50% of 80% = 40%

Question 2:

125% * 125% * 125% brings you within .05%

Wow how did I miss that #2!!

[Guest]

Question 1:

100% * 80% = 80%

50% of 80% = 40%

Question 2:

125% * 125% * 125% brings you within .05%

yep, thats correct! well done, it took my 50 minutes to work them out