70% of students in a school or boys and the number of birth is 504 then number of Boys is???
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if 70% are boys, then 30 % of the
students are girls.
if 30% = 504
1% = 504/30
70% = 504/30 x 70
= 1176
1176 boys!
students are girls.
if 30% = 504
1% = 504/30
70% = 504/30 x 70
= 1176
1176 boys!
Answered by
1
Heya !!
Let 'x' be the total students.
No. of girls = 504
No. of boys = x – 504
Given that, 70% students are boys in a school.
So, the percentage of girls = 100% – 70% = 30%
30% of x = 504
=> 30x / 100 = 504
=> 3x / 10 = 504
=> x = ( 504 × 10 ) / 3
=> x = 168 × 10
=> x = 1680
Thus, No. of boys = 1680 – 504 = 1176
Let 'x' be the total students.
No. of girls = 504
No. of boys = x – 504
Given that, 70% students are boys in a school.
So, the percentage of girls = 100% – 70% = 30%
30% of x = 504
=> 30x / 100 = 504
=> 3x / 10 = 504
=> x = ( 504 × 10 ) / 3
=> x = 168 × 10
=> x = 1680
Thus, No. of boys = 1680 – 504 = 1176
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