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| Answer: Answer: 0 or 7 or 9. |
| This is having multiple answers. |
| If we consider the sum of outer 4 numbers, 9+7+5+4=25; similarly 9+2+6+8=25; |
| So 4+6+?+8 should be equal to 25, which implies the missing digit is 7. |
| When the first row number 9 is multiplied by 8, we get 72; 72 multiplied by 8, we get 576; |
| Following this pattern we get 4608 in the next row; which implies the missing digit is 0. |
| Next possibility is that the numbers in each row is divisible by 9. |
| So the missing digit is either 0 or 9. |
| Winners:Sravya Ainapurapu and Sruthi Ainapurapu, Raghu Ayinapurapu, Swetha Vani Yeluru, |
| Sumanth Nethi, Anushka Chivaluri, Vaasanthi Maghapu, Sridhar Chandragiri, Sarvani Kunapareddy. |
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