Solution for #49

Alternate Solution #1

Half a trunk full of dimes. Dimes are worth twice as much, so half the number of dimes as nickels would be worth the same amount. But since dimes are smaller than nickels, more dimes than nickels can fit in the same amount of space.

Alternate Solution #2

Depends on whether the trunk was cut in half horizontally or vertically. Vertically, you couldn't carry many dimes in it, so the whole trunk full of nickels is probably the better bet.