Question

which term of an AP 3,8,13......is 248. who answers correct will be marked as brainliest

Answer 1

Answer:

a = 3 , d = 8-3 = 5

an = a + (n-1)d

248 = 3 +(n-1)5

3 + 5n - 5 = 248

5n - 2 = 248

5n = 250

n = 50

Answer 2

Answer:

Given AP 3,8,13..........248

Step-by-step explanation:

Asked:Which term is 248

Formula:

anth=a+(n-1)d

Given in AP:

an=248, n=?, d=8-3=5, a=3

To find

nth Term

Solution:

Put Values in Formula

248=3+(n-1)5 .......(take +3 to LHS it will became -3)

248-3=(n-1)5

245=(n-1)5 .........(take 5 which is Multiply in RHS to

divide)

245/5=(n-1)

49=n-1

49+1=n

50=nth Term

•°• 248 is 50th Term Of AP:3,8,13

(Mark It as Brainliest)