Question

if sum of the first 14 term of an AP is 1050 and its first term is 10 find the 20th term

Answer 1

a=10...given

S14=1050
⇒n/2[2a+(n-1)d]=1050
⇒14/2[20+13d]=1050
⇒7[20+13d]=1050
⇒20+13d=1050/7
⇒20+13d=150
⇒13d=150-20
⇒13d=130
⇒d=10

20th term=a+19d
                 =10+19×10
                 =10+190
                 =200...Answer

@skb

Answer 2

heyaaa !!!!

here is ur solution

hope it helps you....

#APS ☺️☺️