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Find the unit digit of a product 356 × 7693.1. 62. 43. 84. 2 |
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Answer» Correct Answer - Option 1 : 6 Given: 356 × 7693 Calculations: 356 30 = 1 31 = 3 32 = 9 33 = 27 34 = 81 For every 4 powers the unit digit is same Here, power of 3 is 56 56 ÷ 4 = 14 So the unit digit = 1 for 356 7693. 60 = 1 61 = 6 61 = 36 For every power of 6 the unit digit is 6 6 × 1 = 6 ∴ The unit digit of a product 356 × 7693 is 6 |
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