The ages of members of a youth club which engages in organising cleanliness campaigns all over the coty, are in a A.P. with common difference equal to 3 months.The youngest member is a child of 7 years where as the sum of ages of all members is 250 years. Find the number of members of the club and age of the oldest member!



You have to find in this question the value of 'n' & 'an' . so the answer is 'n' value is 105 & 'an' value is 11 years
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