Question 14 Shyam runs a password cracking machine at his house.
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Question 14
Shyam runs a password cracking machine at his house. The machine checks 1125 possibilities every hour and runs for 24 hours a day. The charges of the machine running 24 hours is Rs 100. Puneet forgot the password of his crypto wallet and wanted to crack it so he went to Shyam. Wallet has a 4 digit pin having 2 numbers. Shyam takes Rs 100 everyday till his machine checks all the possibilities from Puneet. He cracked the password in 5 days. Find the approx profit percentage of Shyam.
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Answer: A. A) 61.5 %
Rigorous quantitative and aptitude evaluation.
Step-by-step Derivation:
Step 1: Formulate algebraic equations.
Step 2: Solve step-by-step.
Step 3: Match with correct option.