Only the second and third options are correct
Here, we are to select the correct options
To do this, we are going to evaluate each of the options
a) From the question, 1/10 consumed 1/2 can of paint
For a full can, the fraction that will be consumed will be;
This option is wrong
b) 1/5 represents a percentage of 100/5 = 20%
Thus, 3 of this will be 3 * 20% = 60%
That means this option is correct
c) 1 can of paint will paint 1/5
Thus, 5 cans of paint will cover ;
1 represents the full fraction and thus, 5 cans will cover the entire part of the room
This option is correct
d) This is incorrect as it goes against the option marked correct above
e) From the former answers, the entire room will take 5 cans;
Half the entire room will take half of this which is 5/2 = 2 1/2 cans
This option is incorrect too