Question

(a) In an examination, 40% students passed in Maths only, 30% passed in Science only and 10%
students failed in both the subjects. If 400 students passed in Science, find the total number of
students

Answer 1

Answer:

1333

Step-by-step explanation:

let the number of students be x

now, percentage= no of students passed in science÷total students × 100

30=400/x × 100

30/100=400/x

3/10 × 1/400 = 1/x

3/4000=1/x

x=4000/3=1333