Question

Write the arithmetic sequence with first term 30 and sum of the first five term is 300

Answer 1

Given:-

• First term = 30

• Sum of first five term = 300

To find:-

• Arithmetic sequence = ?

Solution:-

Let the first term be a and last term be l and common difference be d.

⇒$s_{n} = \frac{n}{2} (a + l)$

Now,

⇒300 = 5/2(30+l)

⇒30 + l = 120

⇒ l = 90

We know that ,

⇒l = a+(n-1)d

⇒90 = 30 + (5-1)d

⇒60 = 4d

⇒d = 15

So, the sequence will be 30 , 45 , 60 , 75 , 90

Hope its help uh❤

Answer 2

Answer:

30,45,60,75,90

Step-by-step explanation:

hope it helps you