Question 3
Which number will replace the question mark (?) in the following series?
16, 30, 62, 122, 246, ?
Solution
in the given series
16, 30, 62, 122, 246, ?
$$16\times2-2=32-2=30$$
$$30\times2+2=60+2=62$$
$$62\times2-2=124-2=122$$
$$122\times2+2=244+2=246$$
Then, Next number is $$246\times2-2=492-2=490.$$
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