Question

In an examination 45% students passed in science only, 25% passed in English only and 5% students failed in both subjects. If 200 students passed in English then find the total number of students by using a venn-diagram ​

Answer 1

400 students altogether

Explanation:

(100% -5%) - (45% + 25%) + 25% = 95% - 70% + 25% = 50%

200 ÷ 50% = 400