MYTUTOR SUBJECT ANSWERS

200 views

A group of 120 Year 4s and Year 5s are going on a school trip. 60% of the children going on the trip are Year 4s, and of the Years 4s, 1/4 are boys. How many Year 4 girls are going on the trip?

There are quite a few stages to this problem, so let's work through each piece of information one by one.

We know that the total number of children is 120, and 60% are Year 4s. Finding 60% straight away can be tricky so we should find 10% first.

To find 10%, we just divide 120 by 10, which gives us 12. Now we know 12 = 10%, we need to multiply both numbers by 6 in order to find 60%. 

10% x 6 = 60%

12 x 6 = 72

So 72 students are in Year 4. 

We are told 1/4 are boys. So we need to find one quarter of the total number of students in Year 4. We do this by dividing 72 by 4. 

72 / 4 = 18

So we have 72 Year 4s, 18 of which are boys. However we want to find the girls. Therefore we take the total and subtract the number of boys:

72-18 = 54

There are 54 Year 4 girls on the trip

Callum N. 11 Plus Maths tutor, 11 Plus English tutor, GCSE English Li...

5 months ago

Answered by Callum, a 11 Plus Maths tutor with MyTutor


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

222 SUBJECT SPECIALISTS

£18 /hr

Luke J.

Degree: Economics and Politics (Bachelors) - Exeter University

Subjects offered:Maths, Economics

Maths
Economics

“Book a session with me for excellent quality, focused, friendly and in depth learning.”

MyTutor guarantee

£18 /hr

Georgia C.

Degree: Economics and Geography (Bachelors) - Exeter University

Subjects offered:Maths, Geography+ 2 more

Maths
Geography
Economics
Art

“I am a student at The University of Exeter and I am studying Economics and Geography. I have been told that i have a great ability to simplify difficult maths and Economics questions to help give clear, step by step solutions. Therefo...”

£18 /hr

Vinay S.

Degree: Aerospace Engineering (Masters) - Bath University

Subjects offered:Maths, Science+ 4 more

Maths
Science
Physics
Further Mathematics
Economics
-Personal Statements-

“About Me: Hey! I'm a Aerospace Engineering student at the University of Bath. Although my course suggests I'm simply a Maths and Physics kind of guy, I also have a huge passion for Economics, so please feel free to pick my brain on any...”

MyTutor guarantee

About the author

£18 /hr

Callum N.

Degree: History (Bachelors) - Exeter University

Subjects offered:Maths, History+ 2 more

Maths
History
English Literature

“Hi! I am a first year student at the University of Exeter, studying History. I am passionate about teaching and hope to pass on some of my expertise to help students of all abilities achieve their full potential. I have had extensive ...”

MyTutor guarantee

You may also like...

Posts by Callum

A group of 120 Year 4s and Year 5s are going on a school trip. 60% of the children going on the trip are Year 4s, and of the Years 4s, 1/4 are boys. How many Year 4 girls are going on the trip?

How should I analyse a primary source?

Other 11 Plus Maths questions

What are the missing numbers in this sequence? 2, 4, 8, ..., 32, ..., 128

How many 1/3's are there in 9?

How do I work out the area of a rectangle

Write 120 as a product of its prime factors.

View 11 Plus 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