let the score of lowest inning = x score of highest inning = x+172 avg of 38 innings = 48 total score of 38 innings = 48 × 38 = 1824 total score of 40 innings = 50 × 40 = 2000 x+x+172 = 2000 – 1824 2x+172 = 176 2x= 4 x=2 highest score of the player = 172+2 = 174
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