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The pattern is /4*6/5*7/6 so next is *8, or 56.
More clearly:
20 (divided by 4) = 5
5 (times 6) = 30
30 (divided by 5) = 6
6 (times 7) = 42
42 (divided by 6) = 7
Every other number they switch from multiplication to division or vice versa, and the number being multiplied or divided goes up by one, so the odd numbers in the group (the first, third, and fifth numbers ie 20, 30, and 42) are divided by 4, 5, 6, 7, etc. to get the next even numbers. The even numbers in the group (5, 6, and then 7) are multiplied by 6, 7, and then 8.
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What number which best complete the sequence below is 20 5 30 6 42 7?
The number which best completes the sequence below is 20 5 30 6 42 7
What number is next in this sequence 10 20 30 20?
10
What number comes next in this number sequence 90 72 56 42 30?
92 - 18 = 72 72 - 16 = 56 56 - 14 = 42 42 - 12 = 30 30 - 10 = 20 20 is the next number in the sequence.
What numbrt completes the sequence 20 5 30 6 42 7?
56 (just the next number, not the number that completes the sequence)
What is the next number in a sequence 60 30 20 15 12?
10 The sequence is given by xn = 60/n
