MYTUTOR SUBJECT ANSWERS

753 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

563 SUBJECT SPECIALISTS

£18 /hr

Qasim J.

Degree: Medicine (Bachelors) - Birmingham University

Subjects offered:Maths, Chemistry+ 3 more

Maths
Chemistry
Biology
-Personal Statements-
-Medical School Preparation-

“A 4th year medical student with an adaptable and organised approach. Well-planned revision with exam practice ensures knowledge and fantastic exam technique!”

Trusted by schools

|  2 completed tutorials

£24 /hr

Shivali J.

Degree: Medicine (Bachelors) - Imperial College London University

Subjects offered:Maths, Chemistry+ 5 more

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

“Who am I? I am a first year medical student at Imperial College London. I have always been curious about the world we live in and have satisified this innate drive to understand the world around us through science. I hope to share thi...”

£20 /hr

Gayathri S.

Degree: Medicine (Bachelors) - Birmingham University

Subjects offered:Maths, Biology+ 3 more

Maths
Biology
.UKCAT.
-Personal Statements-
-Medical School Preparation-

“I’m a medical student keen to pass on my passion for learning to others! I’m immediately available to tutor at flexible times.”

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

Draw y=x^2+5

What are simultaneous equations and how do I solve them?

Solve the simultaneous equation: 2x + 3y = 6, 3x + 2y = 5.

Divide 270 in the ratio 3:2:1

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