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Question : Study the given table and answer the question that follows.
The table below shows the percentage distribution of students from five different colleges in various disciplines.

DISCIPLINES COLLEGES
P Q R S T
SCIENCE 25 35 45 28 35
ECONOMICS 45 40 15 42 25
MATHEMATICS 30 25 40 30 40

TOTAL
NUMBER OF
STUDENTS

8000 10000 15000 9000 11000

Students from the discipline of mathematics in colleges P and R taken together is what percentage of the total number of students in colleges P and R taken together? [Give your answer correct to one decimal place.]

Option 1: 36.9%

Option 2: 36.5%

Option 3: 37.2%

Option 4: 37.5%


Team Careers360 25th Jan, 2024
Answer (1)
Team Careers360 27th Jan, 2024

Correct Answer: 36.5%


Solution : Total students in P and R = Students in P + Students in R
=  8000 + 15000 = 23000
Students in Mathematics in P and R =
=  30% of 8000 + 40% of 15000
=  0.3 × 8000 + 0.4 × 15000
=  2400 + 6000 = 8400
Required percentage = $\frac{\text{Students in Mathematics in P and R​}}{\text{Total students in P and R}}$×100%
= $\frac{\text{8400​}}{\text{23000}}$×100%
= 36.5%
Hence, the correct answer is 36.5%.

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