Question

For what value of n are the nth term of 2 ap's 63,65,67.... and 3,10,17..... aee equal

Answer 1

Here,
n is equal.
So,
$\: \: \: \: \: \: \: a + (n - 1)d = A + (n - 1)D \\ = > 63 + (n - 1)2 = 3 + (n - 1)7 \\ = > 63 - 3 + 2n - 2 - 7n + 7 = 0 \\ = > - 5n = - 65 \\ = > n = \frac{65}{5} = 13.$
So,
Answer is 13th term.
It is NCERT question yaar.





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