Question

The last term of the A.P. $$5, 12, 19, ........,$$ having $$60$$ terms is ______.

विकल्प

• $$406$$

• $$412$$

• $$416$$

• $$418$$

Answer 1

The last term of the A.P. $$5, 12, 19, ........,$$ having $$60$$ terms is 418.

Explanation:

Here $$d = 7$$, so $$\mathrm{T}_{60} = 5 + 59(7) = 418$$.