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Home » The 13th terms of an AP is 4 times its 3rd term. If its 5th term is 16, Find the sum of its first 10 terms.
The 13th terms of an AP is 4 times its 3rd term. If its 5th term is 16, Find the sum of its first 10 terms.
Arithmetic Progression | CBSE | Class 10 | Maths | RS Aggarwal
The 13th terms of an AP is 4 times its 3rd term. If its 5th term is 16, Find the sum of its first 10 terms.

Solution:

Suppose that a is the first term and d is the common difference, then we have:

i

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