the ratio between the no. of boys and girls in a class is 2:3 the no. of boys is 18 then find the total no. of student in the class ?
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Answer:
#love..
Step-by-step explanation:
ratio is 2:3 so let the no. of boy be 2x and no. of girls be 3x
2x=18
x=9
3x=3×9=27
so total no. of students in the class are
total no. of boys+total no. girls
=27+18
=45
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Question
the ratio between the no. of boys and girls in a class is 2:3 the no. of boys is 18 then find the total no. of student in the class ?
Answer:-
Ratio is 2:3 so let the no. of boy be 2x and no. of girls be 3x:
⇒ 2x+3x=45
⇒ 5x=45
⇒ x=9
given,
Putting the value of x in the ratio of boys and girls:
⇒2x=2×9=18 boys
⇒3x=3×9=27 girls
therefore,
∴Number of boys and girls in the class of 45 students = 18 & 27 respectively.
Boys = 18
Girls = 27
Given answer....up...
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