Question

which terms of the ap 3,11,19,17,.........is 547

Answer 1

here ,

a=3

d=11-3=8

let,

An=547

we need to find n=?

An=a+{n-1]d

547=3+{n-1}8

547=3+8n-8

547=8n-5

8n=552

n=552/8

n=69

hence 69TH term of a.p is 547

Answer 2

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