Question

2 points
The sum of first 27 natural numbers
is.....
O 350
250
378
380​

Answer 1

Answer:

378

Step-by-step explanation:

By Formula of sum of AP

Here,

A = 1

D = 1

N = 27

$\frac{27}{2}(2 \times 1 + (27 - 1)1)$

$\frac{27}{2} \times 28$

$27 \times 14$

$= 378$