The ratio of boys and girls in a school is 6 : 7. If the total number of students in the school is 3289, then what is the number of girls?

1771 1876 1984 1569

1771

Boys : Girls  6     :   7 ⇒ (6 + 7)units = 3289 ⇒ 13 units = 3289 ⇒ 1 unit = 253 ⇒ No. of Girls = 7 x 253 = 1771.