# Gasoline

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 canisters?

Result

a =  10 l
b =  5 l
c =  5 l
d =  15 l

#### Solution:

a+b+c+d=35
c= a-5
d = 10+c
b = a/2

a+b+c+d = 35
a-c = 5
c-d = -10
a-2b = 0

a = 10
b = 5
c = 5
d = 15

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