Math, asked by amark1762, 10 months ago

8, 40, 20, 100, 50, __, 125

Answers

Answered by rockykumargupta0000
2

Answer:

8 x 5 = 40

40 - 40/2 = 20

20 x 5 = 100

100 - 100/2 = 50

50 x 5 = 250

250 - 250/2 = 125

So,

for blank space number is :- 250 answer

Answered by swethassynergy
0

250 is the missing number.

8, 40, 20, 100, 50, 250 , 125

Step-by-step explanation:

Given:

8, 40, 20, 100, 50, __, 125

To find:

The missing number

Solution:

This series is a numerical sequence in which the numbers are arranged orderly and make a sequence.

The pattern is (x₁,x₂,x₃,x₄,x₅,x₆) are the numbers in the series thus x₁, (x₁÷2)×10⇒x₂, (x₂÷2)⇒x₃, (x₃÷2)×10⇒x₄, (x₄÷2)⇒x₅, (x₅÷2)×10⇒x₆.

The first number is divided by 2 and multiplied by 10. Thus we get 40, the second number.

8 ⇒40

          ⇒(8÷2)×10

          ⇒4×10

          x₁⇒40

The second number 40 is divided by 2 . Thus we get 20, the third number.

     40⇒20

         ⇒40÷2

         x₂⇒20

The third number 20 is divided by 2 and multiplied by 10. Thus we get 100, the fourth number.

    20⇒100

        ⇒(20÷2)×10

        ⇒10×10

        x₃⇒100

The fourth number 100 is divided by 2. Thus, we get 50, the fifth number.

   100⇒50

        ⇒(100÷2)

        x₄⇒50

The fifth number 50 is divided by 2 and multiplied by 10. Thus we get 25 the sixth number.

    50⇒?

          ⇒(50÷2)×10

          ⇒25×10

          x₅⇒250

The sixth number 50 is divided by 2 and multiplied by 10. Thus we get 25 the sixth number.

250⇒125

      ⇒250÷2

       x₆⇒125

Hence,

The missing number in the series is 250.  

8, 40, 20, 100, 50, 250 , 125

       

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