Question

find T 20 of 6,12,18​

Answer 1

Step-by-step explanation:

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Answer 2

Answer :

T20 of 6,12,18 = 120

Explanation:

a = 6

d = 6 (12-6 / 18-12)

n = 20

Tn    = a + (n-1) d

T20 = 6 + (20-1) 6

T20 = 6 + (19*6)

T20 = 6 + 114

T20 = 120