Select the option in which the numbers are not related

Solution

The pattern followed here is: The product of digits of first number is added to the first number to obtain second number. The product of digits of second number is added to second number to obtain third number. In (43, 55, 80) → 43 + (4 × 3) = 55, 55 + (5 × 5) = 80 In option (a) (25, 35, 50) → 25 + (2 × 5) = 35, 35 + (3 × 5) = 50 In option (b) (41, 45, 65) → 41 + (4 × 1) = 45, 45 + (4 × 5) = 65 In option (c) (36, 54, 77) → 36 + (3 × 6) = 54, 54 + (5 × 4) = 74 In option (d) (56, 86, 134) → 56 + (5 × 6) = 86, 86 + (8 × 6) = 134