Discussion Forum



 Study the following pie-chart and table carefully and answer the questions given below:

Percentage-wise Distribution of lecturers in 6 different subjects in a university total number of lecturers:1600

2322021881_pie chart 11a.JPG

Ratio of male to female lectures

2322021162_pie chart 11b.JPG

 

1)

What is the ratio of the number of female lecturers in Physics to the number of male lecturers in Mathematics?


A) 5:9

B) 2:9

C) 3:7

D) 5:3

E) None of these

Answer:

Option A

Explanation:

Number of lecturers in various subjects are:

Chemistry → (13100×1600) = 208

Education → (18100×1600) = 288

Hindi → (12100×1600) = 192

Mathematics → (21100×1600) = 336

Physics → (14100×1600) = 224

Zoology → (22100×1600) = 352

 

Subjects

Number of Males

Number of Females

Chemistry

(18×208) = 26

(208-26) = 182

Education

(58×288) = 180

(288-180) = 108

Hindi

(14×192) = 48

(192-48) = 144

Mathematics

(37×336) = 144

(336-144) = 192

Physics

(914×224) = 144

(224-144) = 80

Zoology

(716×352) = 154

(352-154) = 198

Required ratio = 80 :144 = 5 : 9.