Question

5 litres of glycerin contains 20% adulteration. How much glycerin should be added in order to reduce the adulteration upto 5%?

Answer 1

@amistre64 pls help..

Answer 2

does pure glycerin contain adulteration to begin with?

Answer 3

5(.20) + g(0) = (5+g)(.15) is what im thinking

Answer 4

@amistre64 How you got (.15)

Answer 5

@amistre64 How you got (.15)

Answer 6

@amistre64 How you got (.15) pls come here

Answer 7

if we reduce the adulteration up to 5%; then 20-5 = 15

Answer 8

we want a 15% concentration of whatever that is

Answer 9

5(20%) + g(0%) has to be equal to (5+g) at 15%

Answer 10

No, we have to bring the adulteration level upto 5%

Answer 11

you might have to define the terminology for me then :)

Answer 12

Actually i'm supposed to find the adulteration level upto 5%

Answer 13

5 litres of glycerin
contains 20% adulteration

How much glycerin
should be added
in order to reduce (diminish, lower, decrease)
the adulteration up to 5%

Answer 14

Yes,

Answer 15

so

are we reducing the 20% by 5%, to get to 15%?

or

are we reducing the 20% all the way down to 5%?

Answer 16

in either case, the calculation are the same, just the "final" results are different

Answer 17

are we reducing the 20% all the way down to 5%?

Answer 18

then:

5 at 20% + g at 0% = (5+g) at 5%

5(.2) = 5(.05) + g(.05)

5(.20-.05) = g(.05)

5(.20-.05)/(.05) = g

Answer 19

i read it as reducing the 20% down to 15% but the process is the same

Answer 20

Thank you

Answer 21

youre welcome

Answer 22

May be that i get back to you again.

Answer 23

@amistre64 why 'g at' 0%?

Answer 24

the glycerin added doesnt come with any percentage of adulteration to assess; i assume its at 0%, since 1% only increase the lot

Answer 25

spose you have a 20% acid solution, how much 0% water would you add to it to reduce it to 5% (or 15%) ?

Answer 26

try adding a 100% acid solution to it and see if it reduces :)