9. | The last day of a century cannot be? |
| A. | Monday |
| B. | Wednesday |
| C. | Tuesday |
| D. | Friday |
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| Answer: Option C |
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| Explanation: |
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100 years contain 5 odd days.
:: Last day of 1st century is Friday.
200 years contain (5 x 2) 3 odd days.
:: Last day of 2nd century is Wednesday.
300 years contain (5 x 3) = 15 1 odd day.
:: Last day of 3rd century is Monday.
400 years contain 0 odd day.
:: Last day of 4th century is Sunday.
This cycle is repeated.
:: Last day of a century cannot be Tuesday or Thursday or Saturday. |
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Tutorial Link: |
Published by:Michael Daani
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