Hard Missing Number Grid Solution - 27 February
Can you find out the missing number in the grid?
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SolutionThe missing number is 19.
Let us label the boxes with Rs and Cs where R refers to the Row number and C refers to the Column number.
R4C1 = (R1C1 * R3C1) -R2C1 = (5 * 2) -8 = 2
R4C2 = (R1C2 * R3C2) -R2C2 = (7 * 4) -10 = 18
R4C3 = (R1C3 * R3C3) -R2C3 = (6 * 5) -12 = 18
R4C4 = (R1C4 * R3C4) -R2C4 = (4 * 9) -17 = 19
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