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Find the next term: 4, 10, 18, 28, 40, ?

Competition practiceNumber Series

A54
B52
C50
D56

Step-by-Step Solution

Terms are

n (n + 3) : 1 \times 4, 2 \times 5, 3 \times 6, 4 \times 7, 5 \times 8

; next =

6 \times 9 = 54

. (Differences 6, 8, 10, 12, 14 agree.)

Answer: A) 54

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