IDNLearn.com offers expert insights and community wisdom to answer your queries. Discover in-depth answers from knowledgeable professionals, providing you with the information you need.

Mario invested $570 in $45 and $25 stock shares. The number of $25 shares was six less than three times the number of $45 shares. How many of each type of share did he buy?
a. $45 shares
b. $25 shares