Which term of ap 3, 10, 17.... Will be 84 more than its 13th term?
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Answer:
25th term
Step-by-step explanation:
Xn=7n-4
X13 (13th term)=(7*13)-4
=91-4=87
84 more than 13th term
=87+84=171
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7n-4=171
7n=171+4=175
n =175/7=25
answer:25th term
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