Question

Gunpowder can be prepared by saltpetre and nitrous oxide. Price of saltpetre is thrice the price of nitrous oxide. Notorious gangster pitbull sells the gunpowder at $2160 per 10 g, thereby making a profit of 20% . if the ratio of saltpetre and nitrous oxide in the mixture be 2:3, find the cost price of saltpetre.

Answer 1

help!!

Answer 2

I am thinking, lol

Answer 3

in this question they are through too much information.. I THINK

Answer 4

the ans is not given too

Answer 5

OK I think i got it..

Answer 6

Have u got it??

Answer 7

So now, we know that notorious gangster pitbull sells the gunpowder at $2160 per 10 g...

Therefore for 1 gram it is $216

we know that the price of saltpetre is thrice the price of nitrous oxide..
so if the price of nitrous oxide is x, then saltpetre is 3x

and for one gram 3x+x=216

4x= 216; and x= $54

therefore for ONE gram of this gun powder it is $162 for the salt and 54 for the nitrous.

Since we know that the ratio of salt to nitrous in the powder is 2:3
then 2/5 *10 grams = 4 grams of salt
and 3/5*10 grams =6 grams of nitrous

therefore to find the total price of saltpetre in the 10 gram solution:

4*162= $648

since pitbull makes 20% profit from that 648 dollars, the cost price of saltpetre is 648 - 648 *0.2 = 518.4 DOLLARS is the cost price.

Answer 8

let me know what you think

Answer 9

thats correct..

Answer 10

what you got the final answer?

Answer 11

or you think it is correct? lol

Answer 12

yeah

Answer 13

ok cool ..

Answer 14

i think its correct