there was a 2 shops . a stranger came and buyed a book with RS of 60 stranger gave him 100 RS so the shop keeper told that he didn't have exchange of 100 so he went to other shop and took the exchange now he is having 10 Rs of 10 notes so the shop keeper gave to stranger 40Rs and he went after 5 min another shop man came and said the 100 Rs note he gave is duplicate so the shop keeper gave the 100 rs to another shop keeper. Now find how Rs does the shop keeper loss ??
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shopkeeper losses 100 rupees
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Friction is a force that acts to stop the movement of two touching things. The energy lost to friction is turned into sound and heat.
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