There are total 80 students in a class The number of boys who were not present in the class is 4 les...........

Quantitative Aptitude(IBPS CL) Average

There are total 80 students in a class. The number of boys who were not present in the class is 4 less than the number of girls who were not present. The number of girls who were present was two-third more than girls who were not present. 40 boys were present in the class. Find the total number of girls in the class.

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Explanation:

Let the number of girls who were not present in the class be 3x.
The number of boys who were not present in the class = 3x – 4
The number of girls who were present = 3x × 5/3= 5x
The number of boys who were present = 40
According to the data provided in the question, we get:
3x + 3x – 4 + 5x + 40 = 80
⇒ 11x = 44
⇒ x = 4
The total number of girls in the class = 8 × 4 = 32