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Comparing Quantities | Exercise 8.1

Question 6

Q3) 72% of 25 students are good at mathematics. How many are not good at mathematics?

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Solution:

Total number of students = 25

Number of good students in mathematics = 72% of 25 = \frac{72}{100}\times25=18

Number of students not good in mathematics = 25 – 18 = 7

Hence percentage of students not good in mathematics = \frac{7}{25}\times100=28\%

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Our top 5% students will be awarded a special scholarship to Lido.

subject-cta

Question 6

Q3) 72% of 25 students are good at mathematics. How many are not good at mathematics?

Looking to do well in your science exam ? Learn from an expert tutor. Book a free class!

Solution:

Total number of students = 25

Number of good students in mathematics = 72% of 25 = \frac{72}{100}\times25=18

Number of students not good in mathematics = 25 – 18 = 7

Hence percentage of students not good in mathematics = \frac{7}{25}\times100=28\%

Our top 5% students will be awarded a special scholarship to Lido.

subject-cta
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