The ratio of the number of boys and girls who participated in an examination is 4:3. The total percentage of candidates who passed the examination is 80 and the percentage of girls

Q. The ratio of the number of boys and girls who participated in an examination is 4:3. The total percentage of candidates who passed the examination is 80 and the percentage of girls who passed is 90. The percentage of boys who passed is                                                                    .

(A) 55.50

(B) 72.50

(C) 80.50

(D) 90.00

Ans: 72.50

Ans:

Let Number of boys =4x
and Number of girls =3x
Total passed candidates