Math, asked by sk4899430, 9 months ago

Find the 20th term of the ap 7th term is24 less than the 11th term, first term being 12.

Answers

Answered by Anonymous

1

Answer:

31

Step-by-step explanation:

a1 = 12

a7 = a11 - 24

a + 6d = a + 10d - 24

12 + 6d = 12 + 10d - 24

4d = 4

d = 1

therefore,

a20 = a + 19d = 12 + 19(1) = 31

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