Question

Which term of this AP 220,223,226,
229, ..
is 277?​

Answer 1

Answer:

The given AP = 220, 223, 226, 229,..., 277.

a = 220

d = 3

An = 277

277= a + [n-1] d

277= 220 + [n-1] 3

277-220 = 3n-3

57= 3n-3

60= 3n

n = 60/3

n = 20.

The 20th term of this AP is 277.

Hope this answer can helps you dear..♥

Answer 2

Answer:

20

Step-by-step explanation:

We have,

a=220

d=3

nth term=277

By using,

nth term=a+(n-1)d

277=220+(n-1)3

277-220=(n-1)3

57=(n-1)3

57/3=(n-1)

19=n-1

19+1=n

n=20