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In a class there are 540 students. The ratio of number of boys to girls is 2 : 7 . Find total number of girls in the school. |
490 420 470 380 |
420 |
Boys : Girls : Total ATQ, 9R = 540 ( given ) 1R = 60 Number of girls = 7R = 7 × 60 = 420 |
