Question

In an examination, 40% of students failed in maths, 30% failed in english and 10% failed in both. Then, the percentage of students who passed in both is

Answer 1

here, let the percentage of students passing in both be x

40% + 30%+10% + x= 100%

80%+x= 100%

x=100%-80%

x= 20%

therefore,

20 percent students passed in both subjects

Answer 2

Answer:

20 percent students passed in both subjects