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Guys, trying using those simple calculators to work this out and you will get my questions.. Don't try with scientific calculator. Anyone can explain this phenomenom?

2006-09-24 06:03:44 · 12 answers · asked by oh_darius 1 in Science & Mathematics Mathematics

12 answers

the first one means increase of 5 % of 100

the second one means "what 5% less" is 100

eg: if the cost price is 100, profit is 5%. selling price is 105
if the cost price is 105.26, loss is 5%, selling price is 100

2006-09-24 06:10:52 · answer #1 · answered by m s 3 · 0 0

100 + 5%= 100 + 5/100=100+1/20=
+2000/20+1/20=2001/20=100.05

100*5%+100=100*(5/100)+100=
=5+100=105

2006-09-24 13:14:07 · answer #2 · answered by minadimova 1 · 0 0

Funny, when I type in 100+5% I get 105. Are you sure you typed it in right?

Edit: Is that so m_s? It would appear that the exact operation of the % key differs substantially from calculator to calculator. I knew there was a reason I never used that key (besides the fact that everything you can do with the key you can do faster without it, and KNOW what result you're getting).

2006-09-24 13:09:56 · answer #3 · answered by Pascal 7 · 0 0

the 5% is probably of 1 , not 100 so 100 + (.26) = 105.26

2006-09-24 13:11:40 · answer #4 · answered by Danielle 4 · 0 0

not correct
100 * 5/100+100=105

100+5/100=100 + 1/20=2001/20

2006-09-24 13:21:00 · answer #5 · answered by iyiogrenci 6 · 0 0

100 + 5% is actually 100 + .05 right? so you just worded the 2nd part wrong. the way you have it, the answer is 100.05 The real way to word it would be (2nd part) 100 + 5% of 100 right? which would equal 105 as well. just how I look at it.

2006-09-24 13:11:01 · answer #6 · answered by Anonymous · 0 0

100 x 5% + 100
= (100 x 0.05) + 100
= 5 + 100
= 105

100 + 5%
= 100 + 0.05
= 100.05

This is my answer. I don't understand how you get the .26?

2006-09-25 01:37:48 · answer #7 · answered by evelyn_01 3 · 0 0

in the second part 5% of what

2006-09-24 13:29:25 · answer #8 · answered by Anonymous · 0 0

When I do the equation, I get 105 for both. Are you sure that you're typing in your digits right?

2006-09-24 13:12:26 · answer #9 · answered by jjesuil 2 · 0 0

It looks like you probably typed something in wrong.

2006-09-24 13:13:50 · answer #10 · answered by bruinfan 7 · 0 0

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