Question

Which term of ap 5 15 25 will be more than its 130 more tham 31st term?

Answer 1

31st term = 5 + 30 × 10
= 305
Let the required term be nth
So,
305 + 130 = 5 + (n-1)10
=>430 = (n-1)10
=>n = 44
Hence,
44th term is the required one..

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