In an examination 20% of the total number of students failed in maths and 15% in English. 5% of total failed in both subjects. Then percentage of passed students in both subjects.

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Question:

In an examination 20% of the total number of students failed in maths and 15% in English. 5% of total failed in both subjects. Then percentage of passed students in both subjects.

A40%

B65%

C75%

D70%

Answer:

D. 70%

Explanation:

[100-(20+15-5)]% = (100-30)% = 70%

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