For what value of $n$ , the $n^{t h}$ term of an A.P is
(i) $63, 65, 67,$ ... and
(ii) $3, 10, 17,$ .....are equal?

10

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13

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Solution

The correct option is D $13$
$t_{n}$ of series (i) is $63 + (n - 1) 12 = 61 + 2 n$
$t_{n}$ of series (ii) is 7n - 4
$\Rightarrow 61 + 2 n = 7 n - 4$ son = 13

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For what value of n, the nth term of an A.P is(i) 63,65,67,... and(ii) 3,10,17,.....are equal?

The correct option is D 13tn of series (i) is 63+(n−1)12=61+2ntn of series (ii) is 7n - 4⇒61+2n=7n−4 son = 13

For what value of $n$ , the $n^{t h}$ term of an A.P is
(i) $63, 65, 67,$ ... and
(ii) $3, 10, 17,$ .....are equal?

The correct option is D $13$
$t_{n}$ of series (i) is $63 + (n - 1) 12 = 61 + 2 n$
$t_{n}$ of series (ii) is 7n - 4
$\Rightarrow 61 + 2 n = 7 n - 4$ son = 13