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Quantitative Aptitude

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Anil stole hi...

Question

Anil stole his friend’s ATM cum debit card. He knows that the password of the card is of four digit and one of the digit is an even number. He has also seen his friend punching three distinct digits which lie on either of the diagonals on the keypad. The keypad consists of three rows and three columns. It doesn’t have a zero. The top left corner key has 1 and the digits are arranged in a sequence. Number in the first row/column is the least in the respective column/row. What is the probability that he punches the right password in exactly one of the three attempts allowed?

A

\frac{1}{960}

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B

\frac{1}{480}

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C

\frac{1}{320}

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D

Cannot be determined.

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Solution

The correct option is C $\frac{1}{320}$
Option C is the correct answer. Check the video for the approach.

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