Question

Find 25th term of the AP in3, 8,13,18,.....​

Answer 1

A.P = 3,8,13,18,.....

a = 3

d = 8-3 = 5

an = a+(n-1)d

a.25 = 3 + (25-1)5

= 3 + (24)5

= 3 + 120

= 123

The 25th term is 123

Answer 2

Answer:

nth term= a+ (n-1) d

where a is 1 st term and d is the common difference

3 + ( 25-1) 5

3+(24)5 = 3+120 = 123

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