The lock of a suitcase is a 3 digit number. The owner of the suitcase has forgotten the digit at unit's place. If the digit is an even number, then the number of favourable outcomes for units place is__.

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Solution

The correct option is C 5
Total number of possible outcomes are 0, 1, 2, 3, 4, 5, 6, 7, 8 and 9. For the number to be even the digit at unit's place must be an even number or '0'. Thus, the favourable outcomes are 0, 2, 4, 6 and 8.
$∴$ The number of favourable outcomes is 5.

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The lock of a suitcase is a 3 digit number. The owner of the suitcase has forgotten the digit at unit's place. If the digit is an even number, then the number of favourable outcomes for units place is__.

The correct option is C 5Total number of possible outcomes are 0, 1, 2, 3, 4, 5, 6, 7, 8 and 9. For the number to be even the digit at unit's place must be an even number or '0'. Thus, the favourable outcomes are 0, 2, 4, 6 and 8. ∴ The number of favourable outcomes is 5.

The correct option is C 5
Total number of possible outcomes are 0, 1, 2, 3, 4, 5, 6, 7, 8 and 9. For the number to be even the digit at unit's place must be an even number or '0'. Thus, the favourable outcomes are 0, 2, 4, 6 and 8.
$∴$ The number of favourable outcomes is 5.