If the sum of first 14 terms of an A•P is 1050 and its first term is 10 find the 20 term

If the sum of first 14 terms of an A•P is 1050 and its first term is

1.	If the sum of first 14 terms of an A•P is 1050 and its first term is 10 find the 20 term
Answer» A=10...givenS14=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=1020th term = a+19d = 10 + 19×10 = 10 + 190 = 200\xa0