In the following question, select the missing number from the given series.15, 22, 31, 42, 55, ? - Study24x7
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soyab khan
26 Mar 2019 02:24 PM study24x7 study24x7

In the following question, select the missing number from the given series.15, 22, 31, 42, 55, ?

A

60

B

70

C

80

D

90

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