Question

find out the wrong number series 8000, 3200, 1280, 512, 204.8, 84.92, 32.768​

Answer 1

Answer:

84.92

Step-by-step explanation:

8000÷2.5=3200

3200÷2.5=1280

1280÷2.5=512

512÷2.5=204.8

204.8÷2.5=81.92

81.92÷2.5=32.768

Answer 2

Given: The numbers $8000,3200,1280,512,204.8,84.92,32.768$

To find: The wrong number in the above series of numbers.

Solution:

To find out the wrong number in the series we need to understand the pattern in which the series is going that is we need to understand how is the series progressing.

On observing closely it is seen that progressing number is the result of dividing the previous number by $2.5$ that is,

$8000/2.5=3200\\3200/2.5=1280\\1280/2.5=512\\512/2.5=204.8\\204.8/2.5=81.92\\81.92/2.5=32.768$

We can see that $204.8/2.5$ does not give the number $84.92$ as is given in the series.

Final answer:

The wrong number in the given series is 84.92.