What value of $N$ satisfies the following equation:

$90 \% \times 80 \% = N \% ?$

The answer is 72.

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0.9x0.8=0.72 Therefore your answer is 72.

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stupid logic

Maliha Amanat
- 7 years, 4 months ago

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There's nothing like "stupid logic". If the "logic" is stupid, then it is not logic. Anyhow, the logic applied was perfect. So shut up if you don't know your math.

Rakshit Pandey
- 6 years, 4 months ago

(90/100)
*
(80/100)=n/100----------------9
*
8=72

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good noreem.!!

Shubham Srivastava
- 7 years, 9 months ago

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90*80=7200 and 7200/10000=.72 that is 72%

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90% x 80% = N% Logo: 0,90 x 0,80 = 0,72 , equivalente a 72%

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90%=0.9,

80%=0.8,

(0.8)x(0.9)=0.72=72%

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90%x80%=N% 90/100 X80/100=N/100 .9×.8=N/100 .72=N/100 N=.72×100 ,=72 is the ans.

Mahesh Pande
- 5 years, 5 months ago

% means per 100. 90%x80% means 90/100x80/100. This equals 72/100 which is 72%. Therefore N=72.

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(90/100)
*
(80/100)=N/100
18/25=N/100
N=18/25
*
100=72

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90/100 x 80/100 = 7200 / 10000 = 72/100 = 72%. N = 72. Answer : 72

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Problem: 90% * 80% = N%

My solution: 90 / 10 = 9

9 * 8 = 72

N = 72

Although it could also have been solved similarly: 80 / 10 = 8; 8 * 9 = 72. Works either way.

Not sure if this way makes a whole lot of sense but it's how I did it. Like if this made sense to you.

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90*80=7200 100^2=10000 Then, 7200/10000 = 72/100 72% <------- :))

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90% x 80% = .90 x .80 = .72 =72% so N=72

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Write a solution. 90*80=7200 but it is in percentage form so, 7200/100=72..:)

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90(80) = 7200 Then divide by 100.

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90%=90/100

80%=80/100

N%=(90/100)*(80/100)=72

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90% x 80% = N%

---> 90/100 x 80/100 = 7200/10000

7200/10000 be simplified is 72/100

72/100 = 72%

N=72

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90/100 = .9 80/100= .8 .9 * .8 = 7.2 7.2/100 * 10 = 72

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90/100*80/100=7200/10000=72/100=72%

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90%*80%=N% , 90/100 * 80/100 , 9x8/100 , =72/100=72%

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90%= .9 AND 80%=.8 THEN I MULTIPLY .9 X .8 = 0.72 SO THE FINAL ANSWER IS 72%

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8= 10% of 80, so 80-8=72=90% of 80.

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(90 x 80)/100=N

OR
(90/100) x (80/100)= (N/100)

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90% = 0.9 80% = 0.8 90% x 80% = (0.9 x 0.8)100 = (0.72)100 = 72%

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90% of 80% = ? 80/100=0.8 0.8*90=72 therefore, the 90% of 80% is 72.

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its 90/100 x80/100 thats= 72/100

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90/100 multiplied by 80/100 = 0.72

0.72 x 100 = 72%

72%

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90% * 80% = 90/100 * 80/100 =720/1000=72% therefore N=72

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90% = 90/100 and 80%=80/100 90/100*80/100= 7200/100 Simplest form=720/1= 720

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*
.9 = .01 * (8
*
9)
Since we are doing percents, .01 is useless
so 8*9 = 72
Thus,
$\boxed{72}$
percent

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>100* (90/100)= 90 >90*(80/100)=72

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90% is equal to .9

80% is equal to.8

multiply them and you get .72

.72 is = to 72%

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90/100 * 80/100=7200/10000=72/100=72%

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80/100= 0.8, then 0.8 times 90= 72%

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=90% x 80% =90/100 x 80/100 =7200/10000 =72/100 =72x 1/100 =72%

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90%
*
80%=N%
(90/100)
*
(80/100)=N/100
(90*80)/100=72

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90 multiply by 80 then divide by 100

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90% x 80% =720% 720/10= 72

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I multiplied .90 x .80 n I got 72

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You make 90 into .90 and 80 into .80 and multiply. .90x.80=0.72 , move the decimal two places back.

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you have to multiply 90% and 80% then just type in 72.

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I multiplied .90 times .80 and I got 72

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Be clear in what you are saying, to avoid potential confusion. Multiplying $0.90 \times 0.80$ gives you $0.72$ , and not $72$ .

90/100 x 80/100 = 9/10 x 8/10 = 72/100

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Well I thought of it this way: What is 80 % of 90 the number?

subtracting 20 % of what 90 is would give you that number

10 % is 9 therefore 20 % is 18

90-18= 72

Maybe a bit convoluted but that's how I got there

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Or... you could multiply 80 times .9. I mean, this is literally a multiplication problem. I could have solved this when I was 3.

Finn Hulse
- 7 years, 4 months ago

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1.) (90/100) X (80/100) = (7200/10000)

2.) 7200/10000 = N/100

3.) solving we get , N=72