If average of total no of students in 2015 2016 amp 2017 is 260 and 23 girls didn rsquo t participat...........

Quantitative Aptitude(IBPS CL) Data Table

Directions (): Given table shows the total number of boys & girls in a class in 5 different years and percentage of boys & girls who participated in an event and percentage of total students who did not participate in event. Some data are missing which you have to calculate as per the information provided in question. Read the data carefully and answer the questions

If average of total no. of students in 2015, 2016 & 2017 is 260 and 23 girls didn’t participate in 2015, then find the difference between no. of boys and girls who participated in 2015?

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Explanation:

no. of students in 2015 = 780 – (360+180) = 240
Students who didn’t participate in 2015 = 72
no. of boys who didn’t participate in 2015 = 49
Total number of girls in 2015 = 240 – 49/35 × 100 = 100
Required difference = 140×65/100−(100−23) = 91 – 77 = 14