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# on percents

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+127

90 is what percent of 40?

Feb 6, 2020

#1
+21707
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90/40 x100% = .......

Feb 6, 2020
#2
+1

EP: You forgot something!

90 / 40 =2.25 - 1 x 100 =125%. Remember 100% of 40 is 80 and the 25% is that extra 10 + 80 = 90.

Feb 7, 2020
#3
+515
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Hello Guest,               100%  of  40  is  40   NOT  80

This question is simple                100%  :   40 = X%  :  90

X = (100% * 90) / 40  = 225%

Therefore:    90  is  225%  of  40

Dragan  Feb 7, 2020
edited by Dragan  Feb 7, 2020
#4
+1

Dragan: If you have \$40 and your dad gives you another \$40 thereby doubling it, what is the percentage increase? 100% or  200%?

Feb 7, 2020
#5
+21707
+2

The question does not ask what percent increase is it from 40 to 90.....

it asks what percentage is 90 of 40.....

100% of 40   is 40

200% of 40 is   80

225% of 40 is   90

ElectricPavlov  Feb 7, 2020
#6
+515
+2

Hello Guest!

\$80  is  200%  of  \$40

\$40  is  50%  of  \$80

\$40  is  100%  of  \$40

If I had \$40 (100%)  in my pocket and someone gives me another \$40, these  \$80 are  NEW  100%

Dragan  Feb 8, 2020