RRB ALP 10th Aug 2018 Shift-3 Question 2

Question 2

Select the number missing from the given sequence.
1, 2, 6, ........., 120, 720

Solution

$$1\times2 = 2$$
$$2\times3 = 6$$
$$6\times4 = 24$$
$$24\times5 = 120$$
$$120\times6 = 720$$
Hence, Missing number = 24.

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