Question

1,20,57,? what is the place of???

Answer 1

Answer:

The correct answer would be 130.

Explanation:

The given question is about missing or finding the number in the given series. To check and find the number we can see the difference between the given numbers.

Difference between 1 and 20 is 19 where is difference 19 and between 20 and 57 is 37 which is one less than twice the 19 and so by this method, we can say the next number would be one less of twice of the 37 which is 73 so the next answer would-

57+73=130.

Thus, the correct answer is 130.