## Find the next number to complete the sequence 3, -6, 12, 4, 20, ?

Question

Find the next number to complete the sequence 3, -6, 12, 4, 20, ?

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4 weeks 2021-09-19T04:35:31+00:00 2 Answers 0

1. The next number to complete the sequence is 13

Step-by-step explanation:

The sequence of given data is the reducing number by the specific value and the add double of same number in the outcome.

The difference between numbers

-6-3 = -9

12 -(-6) = 18

4 – 12 = -8

20 – 4 = 16

The pattern if behaves as

x-n

x-2x

According to given pattern new number should be

x – 20 = -7

x = -7 +20

x = 13

The next umber will be 13

2. 13

Step-by-step explanation:

From the sequence above the number has a negative sign,increasing and decreasing at rates not quite understandable unless a proper attention is paid.

The sequence of the above data is the reducing number by the specific value and the add double of same number in the outcome.

Take a look a this

-6-3 = -9(the first number is subtracted from the second)

12-(-6)=18

4 – 12 = -8

20 – 4 = 16

From the above one can realize that the outcome of every single linear algebra having the -ve sign will increase by 1(that means +1 is added to the previous number with a negative sign.

So to following the sequence, the next number will b -7

According to given pattern new number should be

x – 20 = -7

x = -7 +20

x = 13