Question

In a survey of some students, it was found that 60 % of the students were studying
commerce and 40 % were studying science. If 40 students were studying both the
subjects and 10% did not study any of two subjects, by drawing a Venn-diagram,
(i) find the total number of students.
(u) Find the number of students who were studying science only.​

Answer 1

Answer:

(i) 400

(ii) 200

Step-by-step explanation

Let total students be $x$

So commerce students = 0.6$x$

And science students = 0.4$x$

No subject = 0.1$x$

(i) Total students =

$x$ = 0.6

Therefore $x$ = 400

(ii) Science students = 0.4$x$ + 40

= 0.4 * 400 + 40

= 200

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Answer 2

Answer:

in a students of some students ot was found that 60 pesent of the students were studying science.it 40 students were studying both the science and 10 persent dit not study any of two subjects by drawing a ven diagram 1 find the total Students 2find the number of students who were studying science only