18th term of an ap is 30 more than its 8th term of 15th term of the ap is 48,find - Maths - Arithmetic Progressions

Question

18th term of an ap is 30 more than its 8th term of 15th term of
the ap is 48,find the ap

Ali · Accepted Answer

a18=30+a8
a+17d=30+a+7d
17d-7d=30
10d=30
d=3
a+14d=48
a+42=48
a=6
ap:6,9,12

18th term of an ap is 30 more than its 8th term.of 15th term of the ap is 48,find the ap.