**Question 1.** **Asked on :**24 August 2019:09:15:05 PM

Find the sum of n terms of A.P. 2+4+6+...... .

*-Added by Prince Rawat*

**Answer by: Akki chauhan**

Answer:30,240

Step-by-step explanation:

Let a be the first term and d the common difference

A=2

D=4-2=2

So, 15th term=a+(15-1)*d

=2+(14*2)

2+28

=30

Sum of first 15 term=

n/2(a+an),where n=number

of terms.

=15/2(2+30)

=15/2(32)

=15*16

=240

*-Answered by Akki chauhan* On 24 August 2019:09:27:13 PM

**Answer by: Master Purushottam**

**Answer:30,240**

**Step-by-step explanation:**

**Let a be the first term and d the common difference**

**a=****2**

**d=4-2=****2**

**So, 15th term= a+(15-1)*d**

**=2+(14*2)**

**=2+28**

**=****30**

** Sum of first 15 terms = n/2(a+an), where n= number of terms**

**=15/2(2+30)**

**=15/2(32)**

**=15*16**

**=240**

*-Answered by Master Purushottam* On 24 August 2019:09:17:25 PM

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