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CAT 2018 Set-1 | Question: 46

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An ATM dispenses exactly Rs. $5000$ per withdrawal using $100, 200$ and $500$ rupee notes. The ATM requires every customer to give her preference for one of the three denominations of notes. It then dispenses notes such that the number of notes of the customer’s preferred denomination exceeds the total number of notes of other denominations dispensed to her.

What is the number of $500$ rupee notes required to serve $50$ customers with $500$ rupee notes as their preferences and another $50$ customers with $100$ rupee notes as their preferences, if the total number of notes to be dispensed is the smallest possible?

  1. $800$
  2. $750$
  3. $900$
  4. $1400$

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