Question

In an examination 40% of the students passed in mathematics only and 30% passed in science only. If 10% of the students were failed in both subjects, what percent of student passed in both subjects? And what percent of student passed in mathematics?​

Answer 1

Answer:

20% of students passed both math and science.

60% of students passed mathematics.

Step-by-step explanation:

All the figures should add up to 100%

100% - 40%(only passed math) - 30%(only passed science) - 10%(failed both)

= 20% student who passed both subjects.

for the students who passed maths only,

40%(only passed math) + 20% (passed both)

= 60% of students