What number should replace the question mark?
35 - - - 16
67 - - - 26
19 - - - 20
61 - - - 14
95 - - - ?
Add the digits on the left side of each row and double that to get the number on the right!
95-9+5+14+14 28
Apply formula 2(a+b) 35=>2(3+5).................16 67=>2(6+7).................26 19=>2(1+9).................20 61=>2(6+1).................14 95=>2(9+5).................28 Ans is 28
(5+3)*2=16 (6+7)*2=26 (1+9)*2=20 similarly (9+5)*2=28
28 is twice the sum of the digits 9 and 5
9+5*2 = 28 6+1*2=14 1+9*2=20 ...........
42 - - - 170 93 - - - 840 18 - - - 26 54 - - - 274 67 - - - ??
143 - - - 22
26 - - - 4
104 - - - 16
65 - - - ?
