Below is a chart given for the number of students from different departments in
Technical / engineering college for the year
2019. The proportion of male to female
students in each department is 5:4. There are
40 males in Electrical Engineering. What is
the difference between numbers of female
students in the Civil department and the
female students in the Mechanical
department?
*
Electrical
20%
Mechanical
Computer
science
20%
Civil
30%

32

Step-by-step explanation:

From the chart

Male: Female=5:4

Number of Males in Electrical Engineering=40

Let the total population of the student=x

Therefore:

5*0.2x=40*9

x=360

Number of Females in the Civil Department

=48

Number of Females in the Mechanical Department

=16

Difference in the number of females

=48-16

=32

14

step-by-step explanation:

14 x 3 = 42

there are 70 more legs than eyes at the dog show (196 – 126 = 70). dogs have two more legs than eyes, and humans have the same number of legs as eyes. thus 70 is twice the number of dogs at the show, so the number of dogs is half of 70, which is 35. to get the number of humans, subtract 35 from 63: 63 – 35 = 28.

step-by-step explanation: