Question

The 10th term of the A.P 11,15,19,......... Is

Answer 1

Answer:

Given,

a=11

d=4

by using general term formula

an=a+(n-1)d

=11+(10-1)4

=11+9×4

=11+36

=47

10th term of the given A.P is 47

Answer 2

Answer:

$d = a_{2} - a_{1} = 15 - 11 = 4 \\a = 11 \\ n = 10 \\ a_{10} = 11 + (10 - 1)4 \\ = 11 + 9(4) \\ = 11 + 36 \\ = 47$

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