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the 14th term of an ap …

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the 14th term of an ap is twice its 8th term. if it's 6th term is-8 , then find the sum of its first 20 terms

Posted by Syed Zeeshan 7 years, 1 month ago

CBSE > Class 10 > Mathematics

2 answers

Aditya Vijayvargiya 7 years, 1 month ago

Sum of first 20 term is '280'

Varsha Harish 7 years, 1 month ago

Sum of the first 20 terms of the AP = 340

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