In an examination, the ratio of practical to theory marks is 3 ∶ 7. If 80% of the marks are scored in the practical and 60% of marks are scored in the theory, what is the ratio of marks scored in the theory and the practical?
Show answer & explanation
Correct answer: C
Explanation
The correct answer is Option 3 i.e. 7 : 4.
Let total practical marks = 3x, theory marks = 7x
Theory ∶ Practical = (0.6 × 7x) : (0.8 × 3x) = 4.2x : 2.4x = 7 : 4