please answer this with explanation
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2
Answer:
Answer is 8
Step-by-step explanation:
Each column adds up to 15
so , 5 + ? + 1 + 1 = 15
7 + ? = 15
? = 15 - 7
so , the required number is 8.
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Answered by
3
We can see that the sum of all element in the rest of the rows is equals to 15.
Row 1
1 + 5 + 6 + 3 = 15
Row 3
9 + 1 + 2 + 3 = 15
Row 4
1 + 1 + 6 + 7 = 15
It means that the sum of alll the elements in Row 2 should be 15.
Let the number in the Question mark be x.
4 + x + 1 + 2 = 15
→ 7 + x = 15
→ x = 15 - 7
→ x = 8
Hence, the correct number is 8.
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