500 candidates appeared in an examination comprising tests in English, Hindi, and Math. The diagram gives the number of students who failed in differe...
Question

500 candidates appeared in an examination comprising tests in English, Hindi, and Math. The diagram gives the number of students who failed in different tests. What is the percentage of students who failed in at least two subjects?
Options:
(a) 6.8%
(b) 7.8%
(c) 1.0%
(d) 0.078%