Total runs scored by player = 140 × 40 = 5600 Let the highest score be x His lowest score = x - 170 Total runs scored in the remaining 38 matches = 136 × 38 = 5168 Highest + lowest score = 5600 - 5168 x + (x – 170) = 432 x = 301 Lowest score = 301 – 170 = 131