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Study the given pie-chart and table carefully and answer the question that follows. The percentage-wise distribution of lecturers in five different subjects in a university is shown in the pie-chart. The total number of lecturers is 500. How many physics lectures were delivered by male lecturers? Ratio of male to female lecturers: Lecturers Males : Females Mathematics 7 : 3 Physics 2 : 3 Chemistry 4 : 1 Botany 3 : 5 Zoology 2 : 5

Study the given pie-chart and table carefully and answer the question that follows. The percentage-wise distribution of lecturers in five different subjects in a university is shown in the pie-chart. The total number of lecturers is 500. How many physics lectures were delivered by male lecturers? Ratio of male to female lecturers: Lecturers Males : Females Mathematics 7 : 3 Physics 2 : 3 Chemistry 4 : 1 Botany 3 : 5 Zoology 2 : 5 Correct Answer 44

Given:

The total number of lecturers is 500

Percentage of physics lecture is 22%

The ratio of the lecture delivered by male and female lecturers in physics is 2 ∶ 3

Concept Used:

Concept of ratio and percentage

x% means x out of 100

Calculation:

The total number of lecturers is 500

Percentage of physics lecture is 22%

⇒ Total number of physics lecture is (22/100) × 500

⇒ 110

The ratio of the lecture delivered by male and female lecturers in physics is 2 ∶ 3

Number of lectures delivered by male in physics is (2/5) × 110

⇒ 44

∴ 44 physics lectures were delivered by male lecturers.

Related Questions

Study the given pie - chart and table carefully and answer the question that follows. The percentage wise distribution of lecturers in five different subjects in a university is shown in the pie chart. The total number of lecturers is 500. Ratio of male to female lecturers: Lecturers Males : Females Mathematics 7 : 3 Physics 2 : 3 Chemistry 4 : 1 Botany 3 : 5 Zoology 2 : 5   What is the difference in the number of female lecturers in chemistry and Mathematics?
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