Share

# Which Term of the A.P. 3, 8, 13, ... is 248? - CBSE Class 10 - Mathematics

#### Question

Which term of the A.P. 3, 8, 13, ... is 248?

#### Solution

Here, A.P is  3, 8, 13,....

a_n = 248

a = 3

Now

Common difference (d) = a_1 - a

= 8 - 3

= 5

Thus, using the above mentioned formula

a_n = a + (n - 1)d

248 = 3 + (n - 1)5

248 - 3 = 5n - 5

245 + 5 = 5n

n = 250/5

Thus n = 50

Therefore 248 is the 50th term of the given A.P

Is there an error in this question or solution?

#### APPEARS IN

Solution Which Term of the A.P. 3, 8, 13, ... is 248? Concept: nth Term of an AP.
S