Join TSR now and get all your revision questions answeredSign up now

What are 'parts' in ratios?

    • Thread Starter

    the question says "Divide £50 into the ratio 2:3"

    (Original post by JackT2000)
    the question says "Divide £50 into the ratio 2:3"
    2:3 means that we divide £50 into two bits where one bit is 3/2 times the other.
    Thus let the bits be a and 50-a, as they have to add up to £50 altogether.
    Thus 50-a = (3/2)a, so add a to both sides to give (5/2)a = 50 -> multiply by 2/5 to give a = 20. Thus the other bit is 50-20 = 30, so we have that £50 divided in the ratio 2:3 is £20 and £30.

    (Original post by JackT2000)
    the question says "Divide £50 into the ratio 2:3"
    You know the ratio 2:3 is also a fractional notation which may be easier to understand.
    The denominator of each fraction = the sum of the numbers in the ratio (2+3) =5
    Therefore the fractions would be = 2/5 and 3/5
    To get the answer you simply times 50 by these two fractions respectively.
    I believe you would then get: 20 and 30 as your answer.
    Fingers crossed this helped you m8 :yy:
Do you have exam superstitions?
Useful resources

Make your revision easier


Maths Forum posting guidelines

Not sure where to post? Read the updated guidelines here


How to use LaTex

Writing equations the easy way

Student revising

Study habits of A* students

Top tips from students who have already aced their exams

Study Planner

Create your own Study Planner

Never miss a deadline again

Polling station sign

Thinking about a maths degree?

Chat with other maths applicants

Can you help? Study help unanswered threads

Groups associated with this forum:

View associated groups

The Student Room, Get Revising and Marked by Teachers are trading names of The Student Room Group Ltd.

Register Number: 04666380 (England and Wales), VAT No. 806 8067 22 Registered Office: International House, Queens Road, Brighton, BN1 3XE

Quick reply
Reputation gems: You get these gems as you gain rep from other members for making good contributions and giving helpful advice.