A thief is on the run after stealing 3 large gold bars.
The police are in hot pursuit.
He has 3 gold bars in his arms – each weighing 5 kg each.
The problem arises when he comes across a mile long, fragile bridge which can only support 100kg.
The thief weighs 90kg.
How can he transport all 3 gold bars in one go without risking the bridge?