Question 13
Loki had some bags of marbles. He kept $\frac14$ of the number of marbles for himself, gave 558 to Pi and the remaining $\frac3{10}$ to Ksi. If there were 40 marbles in each bag, how many bags of marbles did Loki have at first?
Fraction convention: both 1/4 and 3/10 refer to the original total number of marbles, as in the source worked solution.
Fraction convention: both 1/4 and 3/10 refer to the original total number of marbles, as in the source worked solution.