19 % students are absent..... 162 are present.....
how much are absent ??

Question

19 % students are absent..... 162 are present.....
how much are absent ??

amistre64 · Answer

well, if absent + present = 100% .... then present = 100% - absent

paki · Answer

yeah that is the first step... its answer is 38... how to solve, i dont know...

amistre64 · Answer

100 - 19 is not 38

anonymous · Answer

81

amistre64 · Answer

yeah .. then 81% of n students = 162

anonymous · Answer

100-19 = 81

anonymous · Answer

then find n
n=?

paki · Answer

the question is that if there are 162 students present... and 19% of them are absent... then what is the number of that students....

amistre64 · Answer

...and that is what we are working out :/

anonymous · Answer

yeah the n

amistre64 · Answer

this might be embarrassing if we all of a sudden started finding tensor values in linear applications.

amistre64 · Answer

not the n, but 19% of the n

paki · Answer

then

anonymous · Answer

yeah sorry about that :(
19% of the n

amistre64 · Answer

paki, we need you to participate in the solution process.

amistre64 · Answer

what is the value of n  if 81% of n = 162 ?

anonymous · Answer

@amistre64  already gave you the equation 
can you solve it now ?

amistre64 · Answer

n/100 = 1% of n

so ...

81 * n/100 = 81% of n

81 * n/100 = 162;  then solve for 19% of n to determine the number of absents

anonymous · Answer

how is this going @paki now ?

paki · Answer

i solved it like this... 162 is equal to 81%  and we need 19%... so 162x100/81=200...
and 200-162=38... 38 students are absent

amistre64 · Answer

you solved it well then

amistre64 · Answer

200 total .... minus the 162 is fine

paki · Answer

thanks for helping... :-)

amistre64 · Answer

good luck ;)

anonymous · Answer

so you got it right :)
good job @paki

paki · Answer

thank you guys...

anonymous · Answer

no problem , good luck :)