Question

What value will come in place of question mark (?) in the number - series given below ?

4, 30, ?, 1440, 7195, 71940
A) 145
B) 545
C) 650
D) 999

Answer 1

hey

here is answer


question=

What value will come in place of question mark (?) in the number - series given below ?

4, 30, ?, 1440, 7195, 71940
A) 145
B) 545
C) 650
D) 999




answer will be

option no a)


145


hope it helps


thanks

Answer 2

Answer:

Option A is correct.

Step-by-step explanation:

Given Series is 4 , 30 , x , 1440 , 7195 , 71940

We need to find value of x.

We have the following pattern.

1st). 4 × 10 - 10 = 40 - 10 = 30

4th). 1440 × 5 - 5 = 7200 - 5 = 7195

5th). 7195 × 10 + 10 = 71950 - 10 = 71940

So, In alternate 10 and 5 is used.

thus, For 2nd). 30 × 5 - 5 = 150 - 5 = 145

for 3rd). 145 × 10 - 10 = 1450 - 10 = 1440

Therefore, Option A is correct.