it has 80 that is the answer
If you mean: 5, 10, 20, 40 then the following number is twice the previous number which will be 80
From the pattern (n + 4, n + 2, n + ?) I would say the next following number is 20 (n + 1).
The number which best completes the sequence below is 20 5 30 6 42 7
three
it has 80 that is the answer
The number must end in one of the following: 00, 20, 40, 60, 80.
Answer: There has been more than 20 excavated pyramids in the world according to world-pyramids.com. Egypt and Mexico are two of the few countries which have excavated pyramids.
20 years
They used sun dried mud bricks, it wasn't easy to build them. It took about 20 years to build pyramids.
20-50 years
20 years
If you mean: 5, 10, 20, 40 then the following number is twice the previous number which will be 80
National Geographic Explorer - 1985 Pyramids of Fire 20-4 is rated/received certificates of: Portugal:M/6
From the pattern (n + 4, n + 2, n + ?) I would say the next following number is 20 (n + 1).
Judging by the sequence so far, it appears as though the differences are increasing by 3, while the added numbers are increasing by 6. Therefore, following 17 will be 24 + 6 = 30. Following 30 will be 17 + 3 = 20.
234