coollid876

20.11.2020 • 

Mathematics

In a survey of some students, it was found that 60 % of them studied Commerce and 40 % studied Science. If 40 students studied both the subjects and 10 % didn't
study any of the subjects, by drawing a Venn-diagram,
(i) find the total number of students.
(ii) Find the number of students who studied Science only.

Ответ:

taylorruiz16

15.02.2021

Mathematics

---

A. (2,-4)

Step-by-step explanation:

First option: (2,-4)

2(2) + 3(-4) = -8

4 - 12 = -8

-8 = -8 {Correct}

Second option: (1,-2)

2(1) + 3(-2) = -8

2 + -6 = -8

-4 = -8 {Wrong}

---

0,0(0 оценок)