35 l of gasoline is to be divided into four canisters so that in the third canister was 5 l less than the first canister, the fourth canister 10 l more than in the third canister, and the second canister half what in the first canister. How many liters of fuel are in each canister?

Correct answer:

a =  10 l
b =  5 l
c =  5 l
d =  15 l

Step-by-step explanation:

a+b+c+d=35 c= a5 d = 10+c b = a/2  a+b+c+d=35 a+(a/2)+(a5)+(10+c)=35  a+(a/2)+(a5)+(10+(a5))=35  7a=70  a=770=10  a=10=10 l
b=a/2=10/2=5 l
c=a5=105=5 l
d=10+c=10+5=15 l

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