Step-by-step explanation:
a) <em><u>Given</u></em><em><u>, </u></em>
Total marks in English = 90
Marks scored by James = 60
<em><u>Therefore</u></em><em><u>, </u></em>
Percentage of marks scored
= <em><u>66.67% (approx. )</u></em>
<em><u>Then</u></em><em><u>,</u></em>
Total marks in Science = 150
Marks scored by James = 78
<em><u>Therefore</u></em><em><u>, </u></em>
Percentage of marks scored
= <em><u>52%</u></em>
<em><u>At</u></em><em><u> </u></em><em><u>last</u></em><em><u>,</u></em>
Total marks in Maths = 120
Marks scored by James = 75
<em><u>Therefore</u></em><em><u>, </u></em>
Percentage of marks scored
= <em><u>62.50%</u></em>
b) In <em><u>English test </u></em> James scored highest percentage.