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## Find the Missing Number 6

In this table, each row across follows the same pattern of numbers. See if you can discern the pattern and fill in the missing number in the bottom row.

7 4 8

3 9 7

6 5 10

? 8 4

(7×4)-8 = 20 (3×9)-7 = 20 (6×5)-10= 20 (3×8)-4 = 20 The answer is 3.

Squeamish

It could also be 5 if you're going by the pattern that the first and last numbers in each column have the same number of letters and that the total number of letters must be a multiple of one of the numbers in the row.

Ravi

Not sure I follow.

7 4 8

3 9 7

6 5 10

? 8 4

The first and last numbers in each column don't have the same number of letters: ("four","eight"), ("seven, "five")? Also, the question specifies that each row follows the same pattern of numbers. Can you provide an example of your solution?

Aakash

I think Squeamish meant that the first and last numbers in each row have the same number of letters. The rest of it is as Squeamish described.

Squeamish

Whoops, I meant first and last numbers in each ROW, not column.

7 4 8 (Seven and Eight = 5 letters each, 14 total letters in the row, 14 is a multiple of 7) 3 9 7 (Three and Seven = 5 letters each, 14 total letters in the row, 14 is a multiple of 7) 6 5 10 (Six and Ten = 3 letters each, 10 total letters in the row, 10 is a multiple of five)

? 8 4 (Four has four letters so ? must either be Five or Nine to match, and there will be 15 total letters meaning you need the 5 to satisfy "total letters must be a multiple of one of the numbers"))

Ravi

Ah, very clever solution! Have you heard this problem before or did you figure that out by observation?

Squeamish

Thanks. Just figured it out. I didn't get the "real" answer.

Sachin Prabhu

The Answer is this, I followed this., 74 = 28 = 8 (last digit) 39 = 27 = 7 65 = 30 = 0 or 10 38 = 24 = 4

Tarun245

spoiler3

leilei3915

2018529 leilei3915

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