Which of the following numbers will replace the question mark (?) in the given series?
10, 0, 20, 10, 30, 20, 40, 30, ?
1
50
2
20
3
40
4
70
Which of the following numbers will replace the question mark (?) in the given series?
10, 0, 20, 10, 30, 20, 40, 30, ?