Question

90% of the Staff working in a company wear shirts. If 30% of these wear shirts that are blue, then what percent of the employees wear shirts that are not blue?​

Answer 1

Answer:

Assume there are 100 staff members . So 90 wears shirt . Now 30% of 90 which is

90 × 30 / 100 = 27 wears blue shirt .

So how many wears shirt of other color , that

will be 90 - 27 = 63 ℅

Answer 2

Answer:

70%

Step-by-step explanation:

Take total no. of staffs as x

Now 90% wear shirts

So,no of staffs that wear shirts are 90x/100

Now 30% wear blue shirts

So  number of staffs wearing blue shirts are 30%of 90x/100

=30/100*90x/100

=27 x/100

So no of staffs that do not wear blue shirts are

90x/100 - 27x/100

=63x/100

Percentage=(63x/100) / (90x/100) * 100

SO the percentage equals 70 %