IF 5 7 3 20 10 30 then 95 45 ? August 1, 2017 by Shekhar Shivi 1 Comment Number Puzzle #174 IF 5 7 3 20 10 30 then 95 45 ? Check your answer:- Tried enough already? Click here to See SolutionHide it follows this logic => 2*first digit – second digit 2×5-7=3 2×20-30=10 2×95-45=145