Question

Out of 40 students of a class, 60% passed in first division, 30% in second
division and remaining in third division. Find out the number of students in
each category?​

Answer 1

Answer: 24

Step-by-step explanation:

Answer 2

Number of students passed in first division , second division and third division are 24 , 12 and 4 respectively

Given :

40 students are in a class

60% passed in first division, 30% in second division and remaining in third division

To find :

The number of students in each category

Solution :

Step 1 of 3 :

Calculate the number of students passed in first division

Total number of students in the class = 40

Now 60% passed in first division

∴ The number of students passed in first division

$\displaystyle \sf{ = 40 \times \frac{60}{100} }$

$\displaystyle \sf{ } = 24$

Step 2 of 3 :

Calculate the number of students passed in second division

Total number of students in the class = 40

Now 30% passed in second division

∴ The number of students passed in second division

$\displaystyle \sf{ = 40 \times \frac{30}{100} }$

$\displaystyle \sf{ } = 12$

Step 3 of 3 :

Calculate the number of students passed in third division

Total number of students in the class = 40

Number of students passed in first division = 24

Number of students passed in second division = 12

∴ The number of students passed in third division

= 40 - (24 + 12)

= 40 - 36

= 4

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