1. A cricket player after playing 10 tests scored 100 runs in the 11th test. As a result, the average of his runs is increased by 5. The present average of runs is
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By: anil on 05 May 2019 01.55 am
let his average of 10 matches = x total runs in 10 matches = 10x in 11th match he scored 100 runs, so total runs after 11th match = 10x + 100 average of 11 matches = (10x+100)/11 after 11th match the average of his runs is increased by 5, so (10x+100)/11 = x+5
10x+100 = 11x + 55 x = 45 but present average = x+5 = 45+5 = 50 so the answer is option C.
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10x+100 = 11x + 55 x = 45 but present average = x+5 = 45+5 = 50 so the answer is option C.