4, 16, 8, 12, 12, 8, 16,?, 20, 0
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Answers
Answer:
4
Step-by-step explanation:
Method 1)
Given series is 4, 16, 8, 12, 12, 8, 16, ? , 20, 0. We need to find out the missing number.
Let's say that the missing number is x.
First number is 4 then 16 then 8, 12, 12, & so on. If you read carefully the given series you'll notice that it's a table of 4. Pick the first number then third then fifth.
→ 4, _ , 8, _ , 12, _ , 16, x , 20 , _
So, here we already solve the half of the series. Now, write the rest from back to first, table is same.
→ _ , 16, _ , 12, _ , 8, x, _ , 0
Therefore, the missing number is 4. Hence, the series is 4, 16, 8, 12, 12, 8, 16, 4, 20, 0.
Method 2)
Pick the first number then add 4 to get the resultant number.
→ 4 + 4 = 8
→ 8 + 4 = 12
→ 12 + 4 = 16
→ 16 + 4 = 20
Hence, rhe half series is 4, _ , 8, _ , 12, _ , 16, x , 20 , _.
Now, substract 4 from the second number and then again subtract 4 from resultant.
→ 16 - 4 = 12
→ 12 - 4 = 8
→ 8 - 4 = 4 (x)
→ 4 - 4 = 0
From both cases series is 4, 16, 8, 12, 12, 8, 16, 4, 20, 0. Hence, the missing number is 4.
Step-by-step explanation:
procces mentioned above
