self Maths Puzzle


24, 60, 120, 210, ?

A. 300 B. 336
C. 420 D. 525

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self Other Question

20, 20, 19, 16, 17, 13, 14, 11, ?, ?

A. 10, 10
B. 10, 11
C. 13, 14
D. 13, 16

625, 5, 125, 25, 25, ?, 5

A. 5 B. 25
C. 125 D. 625