Given a sequence of two digit numbers grouped in brackets as follows:
(10), (11, 20), (12, 21, 30), (13, 22, 31, 40) ... (89, 98), (99).
The digital sum of the numbers in the bracket having maximum numbers is
(1) 9
(2) 10
(3) 9 or 10
(4) 18
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2,3,4,6,7,8,9,11,12,13,14,15,17,18,19,20,21,? A ... We see that certain numbers are missing in the given series. ... numbers are 10,16- the sum of the two numbers of the two digit numbers ...
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