we know that
a) [tex] 1 [/tex] gallon is equal to [tex] 4 [/tex] quarter of gallon
so
by proportion
[tex] 16.5 [/tex] gallons is equal to
[tex] \frac{1}{4} =\frac{16.5}{x} \\ x=16.5*4\\ x=66 [/tex]quarter of gallon
b) [tex] 1 [/tex] liter is equal to [tex] 1.06 [/tex] quarter of gallon
by proportion
[tex] 66 [/tex]quarter of gallon is equal to
[tex] \frac{1}{1.06} =\frac{x}{66} \\ x=\frac{66}{1.06} \\ x=62.26\\ x=62.3 [/tex]liters
therefore
the answer is the option
[tex] 62.3L [/tex]
