.
The fit and healthy father can cross the bridge in 1 minute.
The aged but healthy grandmother can cross the bridge in 2 minutes.
The pregnant mother can cross the bridge in 5 minutes.
The hobbling, arthritic grandfather can cross the bridge in 10 minutes.
simple. push grandma and grandpa into the chasm, grab the wife and cross to safety - where's the problem here? <img src="/ubbthreads/images/graemlins/evilgrin1.gif" alt="" />