9
Q:
A) 145 | B) 545 |
C) 650 | D) 999 |
Answer: A) 145
Explanation:
Explanation:
4 30 ? 1440 7195 71940
Here the given series follows a pattern of
4
4 x 10 - 10 = 30
30 x 5 - 5 = 145
145 x 10 - 10 = 1440
1440 x 5 - 5 = 7195
7195 x 10 - 10 = 71940
Hence, the missing number is 145