Question

If 6 times of 6^th term of an A.P. is equal to 7 times the 7^th term, then the 13^th term of the A.P. is

पर्याय

• 0

• 6

• 7

• 13

Answer 1

0

Explanation;

Hint:

6t₆ = 7t₇

6(a + 5d) = 7(a + 6d)

6a + 30d = 7a + 42d

7a + 42d – 6a – 30d = 0

a + 12d = 0 = t₁₃