3 - Pointer
Gumdrops and Lollipops
If six gumdrops and ten lollipops cost $1.36, but six lollipops and ten
gumdrops cost $1.20, how much does each lollipop and gumdrop cost?
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5 - Pointer
Sand Timers
You have two hourglass sand timers, one that runs for 3 minutes and another
that runs for 5 minutes. How do you time 7 minutes using these two sand timers?