MYTUTOR SUBJECT ANSWERS

618 views

There are 200 students in Year 10. 110 are boys. There are 250 students in Year 11. 140 are boys. Which year has the greater proportion of boys?

Let P1 and P2 be the proportion of boys in each year.

In order to compare them we should pur the two proportions into simple forms.

P1 = (Number of boys) / (Total number of students)

P1 = 110 / 200 and, simplifying the fraction by 10 we get 

P1 = 11 / 20

Similarily, P2 = 140 / 250 = 14 / 25

Now we need to compare 11/20 with 14/25

In the first fraction, we multiply both the numerator and the denominator by 5 to get

11/20 = 55 / 100 = 55%

Similarily, we multiply the second fraction by 4, getting

14/25 = 56/100 = 56%

Therefore, the first proportion is greater than the other.

Sebastian-Stefan S. GCSE Computing tutor, GCSE Physics tutor, GCSE Ma...

1 year ago

Answered by Sebastian-Stefan, who has applied to tutor GCSE Maths with MyTutor


Still stuck? Get one-to-one help from a personally interviewed subject specialist

459 SUBJECT SPECIALISTS

PremiumRyan G. GCSE Maths tutor, GCSE Physics tutor, GCSE Computing tutor, A...
£22 /hr

Ryan G.

Degree: Electrical Engineering with Renewable Energy (Masters) - Edinburgh University

Subjects offered:Maths, Physics+ 2 more

Maths
Physics
Computing
-Personal Statements-

“ I will offer a wide range of ways to learn so you can find a way that best suits you!”

£20 /hr

Shreya G.

Degree: Biochemistry with molecular medicine (Bachelors) - Nottingham University

Subjects offered:Maths, Biology+ 1 more

Maths
Biology
-Personal Statements-

“I am a first year undergraduate student at The University Of Nottingham, currently studying Biochemistry with molecular medicine. ”

£22 /hr

Haider M.

Degree: Medicine (Bachelors) - Exeter University

Subjects offered:Maths, Physics+ 7 more

Maths
Physics
Extended Project Qualification
Chemistry
Biology
.UKCAT.
.BMAT (BioMedical Admissions)
-Personal Statements-
-Medical School Preparation-

“A bit about me I am currently in my 2nd year of medical school at the University of Exeter. I really enjoy learning about science, especially the science of health disease, and would love nothing more than to pass down this knowledge ...”

About the author

£18 /hr

Sebastian-Stefan S.

Degree: Computer Science (Masters) - Bristol University

Subjects offered:Maths, Physics+ 1 more

Maths
Physics
Computing

“Top tutor from the renowned Russell university group, ready to help you improve your grades.”

MyTutor guarantee

You may also like...

Posts by Sebastian-Stefan

Expand and simplify the following equation 5a(4b - 3) - 2a(6 + b)

There are 200 students in Year 10. 110 are boys. There are 250 students in Year 11. 140 are boys. Which year has the greater proportion of boys?

Using factorization, solve x^2 + 10x + 24 = 0

Other GCSE Maths questions

Share £650 in the ratio 8:5

Find the volume and surface area of a cylinder, of length 20cm and radius 5cm.

How to find the roots of a Quadratic Equation by Factorising?

What's the difference between a histogram and a bar chart?

View GCSE Maths tutors

We use cookies to improve your site experience. By continuing to use this website, we'll assume that you're OK with this. Dismiss

mtw:mercury1:status:ok