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Saturday, December 15, 2018

The ratio of the number of boys and girls in a school is 3

The ratio of the number of boys and girls in a school is 3 : 2. If 20% of the boys and 30% of the girls are scholarship holders, then the percentage of students, who do not get scholarship, is
A50
B72
C75
D76

Answer is : 76

Explanation :

Let the number of boys & girls be 3x and 2x.

Number of those who are not scholarship holders

=(80% of 3x+70% of 2x)

=12x5+7x5

=19x5

Required Percentage =19x515x100%=76

Nithin K
answered Nov 20 '2016 at 19:15

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