Maths · Probability: Probability of an event, addition and multiplication theorems of probability
A student has to secure marks to pass. He got 80 marks and failed by 60 marks. T
A student has to secure \( 35 \% \) marks to pass. He got 80 marks and failed by 60 marks. The maximum marks are
- A. 100
- B. 200
- C. 300
- D. 400
Step-by-step solution
Let maximum marks be M. Pass mark = 35% of M = 0.35M. He got 80 marks and failed by 60, so pass mark = 80 + 60 = 140. Thus 0.35M = 140, so M = 140 / 0.35 = 400.
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