A king (78 kg), the Prince (36 kg) and the Queen (42kg) are
stuck at the top of a tower, A pulley is fixed to the top, over the
pulley is a rope with a basket on each end of a rope. One basket has
a stone weighing 30 kg and can be removed, if required. The baskets
are strong enough to take a load of two persons or (1 person and 1
stone). For safety's sake there can't be the difference of more than a
6 kgs between the weights of the two basket,, If all three come down
in minimum number of ups and downs operation of the pulley, then?
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