The sum of the 5^{th} and the 7^{th} terms of an AP is 52 and the | Filo

Class 10

Math

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Arithmetic Progressions

533
150

The sum of the and the terms of an AP is 52 and the term is 46
then the AP is 1, 6, 11, 16.......
If true then enter and if false then enter

1. 1
Correct Answer: Option(a)
Solution: Let be the first term and be the common difference of the given A.P.
Then,

and

multiplying (2) equation by 2 and we get,

now subtract (1) from (3) then we get,

now put d in (1) equation we get

There for the given series is

i.e.
533
150

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