1.

Sarvesh Verma has 3 mobile wallets- PayPal, PayTM and PayU-installed in his smartphone. Initially, he has only ₹ 100 in PayPal wallet and other two wallets have nothing. He can transfer his money from one wallet to any other wallet without any transaction charges or any incentives. One day, he performes seven online transactions, and in every transaction he empties his one wallet completely into another wallet. After seven transaction he has rs 100 in PayPal wallet. During this procedure neither he pays any amount to nor receives any amount from any third party by any means. In how many different ways can he make these transactions?

Answer»

14
21
42
49

Answer :C


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