"Left pan of a faulty balance weighs 100 grams more than its right pan. A shopkeeper keeps the weigh
Channel: Doubtnut
Date: 2020-04-05

"Left pan of a faulty balance weighs 100 grams
 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?
a. `(100)/(11)%`
b. `(200)/(11)%`
c. `(100)/9%`
d. `(200)/9%`"