which term of the AP 3,8,13,18.........is 258
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which term of the AP 3,8,13,18.........is 258
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Step-by-step explanation:
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Answer:
Step-by-step explanation:
❈ Given:-
A.P. :-3,8,13,18... , where a=3, d=5.
❈ To Find:-
Which term of the A.P. is 258?
❈ Formula Applied:-
aₙ=a+(n-1)d
❈ Solution:-
aₙ=a+(n-1)d, where aₙ=258, d=5, a=3.
⇒258=3+[(n-1)×(5)]
⇒258-3=5n-5
⇒255+5=5n
⇒5n=260
∴ 52th of the A.P. is 258.