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Question
Three terms in A.P. are such that their sum is 45.What is the middle term?
Three terms in A.P. are such that their sum is 45.What is the middle term?
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Solution
The correct option is A 15
Take the three terms as a - d,a and a+d where a is the first term and d is the common difference. Then (a - d) + a + (a + d) = 45
So, a = 15
15
Take the three terms as a - d,a and a+d where a is the first term and d is the common difference. Then (a - d) + a + (a + d) = 45
So, a = 15
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