Preliminary exam CSAT October 31, 2024

1. Left pan of a faulty balance weights 100 gram more than its right pan. A shopkeeper keeps the weight measure in the left pan while buying goods but keeps it in the right pan while selling his goods. He uses only 1 kg weight measure. If he sells his goods at the listed cost price, what is his gain? (UPSC Prelims 2005 - Mental ability)