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खिलाड़ियो की औसत आयु 2 माह कम हो जाती है, जब 2 नए खिलाड़ी टीम में उपस्थित 2 खिलाड़ियो जिनकी आयु 17 वर्ष तथा 20 वर्ष को प्रतीस्तापित करते है। दोनों नए खिलाड़ियो की औसत आयु ज्ञात करे:A. 17 years 1 monthB. 17 years 7 monthsC. 17 years 11 monthsD. 18 years 3 months |
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Answer» Correct Answer - B Sum of age of two players = 17+20=37 years Decreasing age of players = 11 x 2 =22 months Sum of age of two new players = 37 yrs- 22 months = 35 yrs. 2 months Average = 17 years 7 months Alternate `((17+20)-("sum of two new players"))/11` `2/12` =`1/6` Sum of two new players =`211/6` average of two new players =`211/12` =17 years 7 months |
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