Question 103
Cream makes up $7\%$ of the mass of milk, and butter is made from $61\%$ of the mass of the cream. From how much milk is $3~\mathrm{kg}$ of butter made?
(A) less than $5~\mathrm{kg}$
(B) $17~\mathrm{kg}$
(C) $54~\mathrm{kg}$
(D) $69~\mathrm{kg}$
(E) more than $70~\mathrm{kg}$
(A) less than $5~\mathrm{kg}$
(B) $17~\mathrm{kg}$
(C) $54~\mathrm{kg}$
(D) $69~\mathrm{kg}$
(E) more than $70~\mathrm{kg}$