Question

Find the wrong number in the series of 4,6,12,30,60,315,1260

Answer 1

The missing number is 30.

Explanation:

4 * 3/2 = 6,
6 * 4/2 = 12,
12 * 5/2 = 30,
30 * 6/2 = 90,
90 * 7/2 = 315,
315 * 8/2 = 1260.

So, the missing number is 30.

Answer 2

Answer :

The wrong number of the given series is 60.

Step by step explanation :

Hey Mate,

Given Series : 4 , 6 , 12 , 30 , 60 , 315 , 1260.

Solution :

#1

4 × 1.5 = 6

#2

6 × 2 = 12

#3

12 × 2.5 = 30

#4

30 × 3 = 90

#5

90 ×3.5 = 315

#6

315 × 4 = 1260.

The wrong number of the given series is 60.