What Comes Next In The Sequence: 105, 99, 90, 81, ??
Look at the given series of numbers and try to guess the pattern.
What Comes Next In The Sequence;
105, 99, 90, 81, ??
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In the series to get the next number you have to subtract the number with the sum of its digits to the units place.
So; to get the next number after 105 we find the sum of its digits.
1 + 0 + 5 = 6;
So the next number is;
105 – 6 = 99
Similarly in case of 99;
9 + 9 = 18; 1 + 8 = 9
So;
99 – 9 = 90
Hence for 90;
90 – 9 = 81
So to find the next number we have to subtract 81 with (8 + 1 = 9)
So answer = 81 – 9 = 72.