WAEC - Mathematics (1996 - No. 7) | ExamPlay

WAEC - Mathematics (1996 - No. 7)

Find the 9th term of the arithmetic progression 18, 12, 6, 0, -6 .........

-54

-30

30

42

66

Vysvětlení

18, 12, 6, 0, -6, 12, -18, 24, -30
9th term = -30

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