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1. |
What is the unit digit of the sum of first 78 whole numbers?1). 32). 93). 84). 0 |
Answer» Sum of first 78 WHOLE numbers = 0 + 1 + 2 + 3 + 4 ……………….76 + 77 ⇒ 78/2 (0 + 77) ⇒ 3003 Unit digit of this sum will be 3. |
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