(11) What is the missing number in the given series?
48, 49, ?, 51, 52
A. 50 B. 49 C. 48 D. 47
(12) Put these numbers in increasing order.
21, 28, 7, 14
A. 7, 21, 14, 28 B. 14, 21, 7, 28
C. 7, 14, 21, 28 D. 21, 28, 7, 14
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(1) What is the missing number in this series?
42, 43, ?, 45, 46
A. 24 B. 44 C. 64 D. 84
(2) What is the missing number in this series?
40, 50, 60, ?, 80, 90
A. 40 B. 50 C. 55 D. 70
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