plz slove this question
Attachments:
Answers
Answered by
0
is it right.. okkk don't forget to consider as brainliest
Attachments:
duswt31p8yset:
but 42 is a ans
it can also be satisfied as
hey boy qn is about strength
add 15 and 27 it will ve 42
am i clear??
say
yes it is correct
okk
Answered by
2
Given,
Ratio of boys and girls= 9/5
Let the Number of boys be x and number of girls be y.
Now,
x/y = 9/5
y = 5x/9................(I)
Again it is given that The number of girls is 12 less than the number of boys,
So, it means that if we add 12(students suppose) in number of girls that it will be equal to the number of boys,
Therefore,
y+12 = x
5x/9 + 12 = x
12 = x - 5x/9
12 = (9x-5x)/9
12 = 4x/9
4x= 12*9
x= 27
·.·y = 5x/9
y = (5*27)/9
y= 15
Number of boys = 27
Number of girls = 15
.·. Total Strength of Class= 27+ 15
= 42
Ratio of boys and girls= 9/5
Let the Number of boys be x and number of girls be y.
Now,
x/y = 9/5
y = 5x/9................(I)
Again it is given that The number of girls is 12 less than the number of boys,
So, it means that if we add 12(students suppose) in number of girls that it will be equal to the number of boys,
Therefore,
y+12 = x
5x/9 + 12 = x
12 = x - 5x/9
12 = (9x-5x)/9
12 = 4x/9
4x= 12*9
x= 27
·.·y = 5x/9
y = (5*27)/9
y= 15
Number of boys = 27
Number of girls = 15
.·. Total Strength of Class= 27+ 15
= 42
It comes under meaningless answer. You should answer it firsrt instead of doing promise that you will solve it
nice
thanks!
( :
Similar questions