Find the missing number challenge
5,7,100 | 6,2,24 | 8,3,28 | 5,4,?
Facebook Comments
Find the missing number?
(21 votes, average: 3.00 out of 5) (21 votes, average: 3.00 out of 5) (21 votes, average: 3.00 out of 5) (21 votes, average: 3.00 out of 5)
Using matrix calculation and determinant form , answer of this question is 97.
See the similarities-
(7*-13)+(5*30)+42=101
(6*-13)+(2*30)+42=24
(8*-13)+(3*30)+42=28
hence ,
(5*-13)+(4*30)+42=97
Why we multiply greater term by -13 and lesser term by 30 and add 42, if you are interested to know that you can use inverse matrix method for this.