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Inquisitive Minds Message Board › Brain Teaser

Brain Teaser

Melrose, MA
Post #: 15
I heard this the other day; wanna know if anyone has an answer for it. Three friends go to a motel. It’s $30 a night, so they each give the manager $10. Later, the manager realizes the charge is actually only $25. He gives the extra $5 to the clerk and tells him to return it to the friends. The clerk is dishonest, so he only gives $1 each to the three friends, and keeps $2 himself. The friends have now effectively paid $9 each, and $27 in total. That plus the $2 the clerk has adds up to $29. Where is the other $1?
A former member
Post #: 45 seems the riddle is misleading, as the $27 already includes the $2 kept by the clerk. The guests may have effectively paid $27, but remember that $25 of it is still in the owner's possession. $25 + $2 stolen by the clerk + $3 to each of the guest equals $30.
A former member
Post #: 1
From the point of view of the hotel manager:
$30 incoming, $5 outgoing = $+25 (gain)

From the point of view of the clerk:
$2 incoming, $0 outgoing = $+2 (gain)

From the point of the view of the businessmen:
$3 incoming, $30 outgoing = $-27 (loss)

Losses are $27, gains are $27--there is no missing dollar. :)

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