Question

Comprehension

Based on the data in the table, answer the questions that follow

The following table embodies the details about the students of the different departments' A, B and C in a University for participating in the blood donation camp.

Participation in Blood Donation Camp - Data

Department	Percentage of Girls	Percentage of blood donating Girls*	Number of blood donating Boys*
A	25%	40%	48
B	40%	50%	75
C	30%	70%	39

*-out of total blood donors

1. 32
2. 48
3. 60
4. 56

Answer 1

Correct Answer - Option 2 : 48

Given:

The number of girls who donated blood in department A = 40%

Total number of girls who donated blood in department A = 25% of the department 

Calculations:

Department	percentage of girls	percentage of blood donating girls*	number of blood donating Boys*	percentage of blood donating boys	number of blood donating girls
A	25%	40%	48	60%	32
B	40%	50%	75	50%	75
C	30%	70%	39	30%	91

25% of girls = 32

100% of department = 32 × 100/25 = 128

Blood donated students in department A = 32 + 48 = 80

The number of boys who did not participate in the blood donation camp = total number of students - number of students who donated blood

⇒ 128 – 80 = 48

∴  The number of boys in the department 'A' who did not participate in the blood donation camp is 48