Read the given Bar Graph which shows the percentage of marks obtained by Brinda in different subjects in an assessment test.

Observe the Bar Graph and answer the following questions.
(i) 1 Unit = __________% of marks on vertical line.
(ii) Brinda has scored maximum marks in __________ subject.
(iii) Brinda has scored minimum marks in __________ subject.
(iv) The percentage of marks scored by Brinda in Science is __________.
(v) Brinda scored 60% marks in the subject __________.
(vi) Brinda scored 20% more in __________ subject than __________ subject.