20 increased by 200% is:
a)30
b)40
c)50
d)60
Ann's computer has a total capacity of 60 GB. At present she is using 39% of the capacity.
How much free space does she have?
20 x [200/100 +1] = 60, or "d" on your list.
60 - [39% x 60] =60 - 23.4 =36.6 GB - free space that Ann has.
