Type the next number in the sequence:

1, 11, 31, 61, ___
101

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Solution

The correct option is A 101
Let's observe the pattern:
11 = 1 + 10
31 = 11 + 20
61 = 31 + 30

Therefore, to get the next number we add 40 to the previous number.
? = 61 + 40
= 101

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225, 100, 36, 9, 1, ?

Find the next number in the sequence.

11, 21, 32, 42, 53, 63, ?

\frac{\frac{1}{2} + 3 \frac{1}{4} + 1 \frac{1}{6}}{2 \frac{1}{2} + 1 \frac{1}{6} + 6 \frac{1}{3}} + \frac{1}{120}

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