Question

The first term of an A.P. is $$7$$ and its 13th term is $$35$$. The common difference of the A.P. is ______.

Options

• $$\frac{5}{3}$$

• $$\frac{7}{2}$$

• $$\frac{8}{3}$$

• $$\frac{7}{3}$$

Answer 1

The first term of an A.P. is $$7$$ and its 13th term is $$35$$. The common difference of the A.P. is `underlinebb(7/3)`.

Explanation:

$$35 = 7 + 12d$$, so $$d = \frac{28}{12} = \frac{7}{3}$$.