Question

18. Find the sum of 3+6+9+ -----...+96 (or) compute x, such that 10*4 = x​

Answer 1

Answer:

1485

x=40

Step-by-step explanation:

Let 96 be the nth term then

$96 = 3 + (n - 1) \times 3 \\ 93 = 3(n - 1) \\ n - 1 = 31 \\ n = 30$

Sum is given by

$\frac{n}{2} (3 + 96) = \frac{30}{2} (99) = 1485$

$10 \times 4 = x \\ x = 40$

Answer 2

Answer:

Take the answer and write it