Question 169469
1st condition: By Ratio:
{{{Green/Black=Gn/Bl=5/2}}}
2nd Condition:
800,000(Gn)+1,100,000(Bl)=18,600,000
Via 1st Condtn we get:
{{{Gn=(5/2)Bl}}} ---> 3rd Condition, susbt. in 2nd Contn.:
.
800,000(5/2)Bl+1,100,000(Bl)=18,600,000
2,000,000(Bl)+1,100,000(Bl)=18,600,000
3,100,000(Bl)=18,600,000, Isolate "Black" by dividing both terms 3,100,0000
{{{cross(3100000)(Bl)/cross(3100000)=cross(18600000)6/cross(3100000)}}}
{{{highlight(Bl=6)}}} ---> number of Black jeeps
Via condition 3:
{{{Gn=(5/2)(6)=30/2=highlight(15=Gn)}}} ---> number of Green Jeeps
In doubt? Go back Condtn. 2 (amount of fuel consumed):
{{{800000(15)+1100000(6)=18600000}}}
{{{12000000+6600000=18600000}}}
{{{18600000=18600000}}}, good
Thank you,
Jojo