Find the total number of boys in X College if the average number of girls in St Xavier College and l...........

Quantitative Aptitude(IBPS CL) Case Studies

Directions : Data regarding number of boys & girls in both the colleges is as follows: -
Average no. of Girls in St. Xavier College and Vijaya College is 210 & total number of boys in both the college is 810. Number of Girls is 2/3 of boys & number of Girls is 2/5 of number of Boys in St. Xavier College and in Vijaya College respectively.

Find the total number of boys in X College, if the average number of girls in St. Xavier College and ‘X’ college is 320. Also the total number of students in ‘X’ college is 25% more than total number of students in St. Xavier college.

450

400

375

350

300

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Explanation:

The number of boys in Vijaya = 450
And, the number of girls in Vijaya =180
Also, the number of boys in Xavier =360
And, the number of girls in Xavier =240

Number of girls in X college =640-240=400
Total students in Xavier = 600
So, total students in X =600x125/100=750
Number of boys in X college = 750 –400 = 350
So, option (d) is the correct answer.