Question

for what value of n are the nth terms of two APs:63,65,67 and 3,10,7.....equal?​

Answer 1

Answer: 13

Step-by-step explanation:

Let the 1st AP be A =63,65,68.....

Let the 2nd AP be B = 3,7,17......

For A , common difference is : 65-63 = 2

For B ,common difference is : 10-3 = 7

Now Let the nth term be An and Bn respectively.

According to question

An = Bn

=> 63+(n-1)2 = 3+(n-1)7

=>60 + 2n-2 = 7n-7

=>65 = 5n

=> n = 13

Thus 13th term of both AP's will be same

Answer 2

Answer:

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