Question

How many terms of 14,18...should be added to get 270

Answer 1

let n terms of this app is to be added,
so sum of n terms =270
$s |n| = \frac{n}{2} (2a + (n - 1)d) \\ 270 = \frac{n}{2} (28 + (n - 1)4) \\ 540 = n(24 + 4n) \\ 135 = n(6 + n) \\ {n}^{2} + 6n - 135 = 0 \\ solve \: this \: u \: will \: get \: n$


mark as brainliest if helped