Rewa misread the number 45 as 54. Find the percentage increase or decrease in this process.

Correct option is B

Given:

Number misread as 54 in place of 45

Formula Used:

Percent change$$= \frac{Change \ in\ value}{Original\ Value}\times 100$$​​

Solution:

Original number = 45

New number = 54

Change = 54 - 45 = 9

So, there is an increase of 9

Percent increase = $$\frac{9}{45} \times 100 = 20\%$$​​