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Numbers-Data Intensity 4 :: Discussion
| 28. | What is the unit digit in 7105 ? | |
| A. | 1 | |
| B. | 5 | |
| C. | 7 | |
| D. | 9 | |
| Answer: Option C | |
| Explanation: | |
|
Unit digit in 7105 = Unit digit in [ (74)26 x 7 ] But, unit digit in (74)26 = 1 Unit digit in 7105 = (1 x 7) = 7 |
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