In an examination of 180 marks of a subject, 75% marks are allocated for theory and the rest for project work. Veena scored 60% in theory. What percentage of marks must she score in the project to achieve an overall 62% marks in the subject?
Show answer & explanation
Correct answer: B
Explanation
he correct answer is option 2 i.e. 68
Total marks required = 62% of 180
⇒ (62/100) × 180 = 111.6
The total marks in theory = 75% of 180 = 135
The total marks in practice = 25% of 180 = 45
Marks he got in theory = 60% of 135 = 81
Extra marks needed to get 62% = 111.6 - 81 = 30.6
Now, 30.6 as percentage of 45 marks
⇒ (30.6/45)100 = 68%