Simplifying Ratio - GCSE Revision Practice

#GCSE #maths #ratio #grade3 #revision #mocks
- stop the video
- work through the questions
- compare your solutions

Here's the questions:
1. Write the ratio 250cm to 750cm in its simplest form
2. Write the ratio 64 : 48 in its simplest form.
3. Write the ratio 10 days to 2 weeks in its simplest form
4. Write the ratio 350 : 25 in its simplest form.
5. (a) Write the ratio 8 : 16 in the form 1 : n
(b) Write the ratio 4 : 10 in the form 1 : n
(c) Write the ratio 21 : 40 in the form 1 : n
6. (a) Write the ratio 4 : 8 in the form n : 1
(b) Write the ratio 9 : 2 in the form n : 1
(c) Write the ratio 13 : 3 in the form n : 1
7. There are milk and plain chocolates in a gift box. ¼ of the chocolates are milk chocolates. Write the ratio of milk chocolates to plain chocolates.
8. There are some counters in a bag. ⅛ of the counters are green. The rest of the counters are blue. Write the ratio of the number of green counters to the number of blue counters. Give your answer in the form 1 : n.
9. At a hockey match there are 2200 men and 1800 women. Write the ratio of male fans to female fans. Give your answer in its simplest form.
10. There are green crayons, blue crayons and yellow crayons in a pack. There are three times as many green crayons as blue crayons. There are five times as many yellow crayons as blue crayons.
Write the ratio of green crayons to blue crayons to yellow crayons.
11. In a tin of biscuits there are wafers, chocolate and plain biscuits. The number of chocolate biscuits is five times the number of wafers. The number of plain biscuits is half the number of chocolate biscuits. Write down the ratio of wafer biscuits to chocolate biscuits to plain biscuits. Give your answer in the form a : b : c where a, b and c are whole numbers.
12. In a bag there are red sweets, blue sweets and green sweets. The number of red sweets is three times the number of blue sweets. The number of green sweets is half the number of blue sweets.
Simon says the percentage of red sweets is 60%. Is Simon correct?
You must show your working.
13. (a) Divide £60 in the ratio 2 : 3
(b) Divide £600 in the ratio 2 : 3 : 5
14. Lauren is making a cake. The instructions say that the ratio of sugar to flour is 1 : 5. Lauren uses 75g of sugar and 350g flour. Has Lauren used the correct ratio of sugar and flour?
15. A school is planning some trips. For every group there must be 1 teacher to 16 students. Which of these trips can go ahead as planned?

I hope the video helps and please do leave a comment - thanks!

Join this channel to get access to get your name mentioned in a maths problem!

Visit @3minutemaths for a full range of quick reminder and GCSE maths walkthrough videos.

HERE'S SOME PLAYLISTS THAT MIGHT BE USEFUL:

... AND HERE'S SOME POPULAR TOPIC VIDEOS AIMED AT AROUND GRADE 5:

MOST OF THE VIDEOS & QUESTION PAPERS HAVE BEEN POSTED TO:

[gstfu]

Hey! I just wanted to say thank you for your videos. It really helped and I passed my GCSE's in 2021. I don't think I would've been able to without the help of your videos! Amazing explanations and easy following! Keep it up ❤

[thesquadlvr]

Thank you so much! This is going to help me pass my GCSEs

[jreynolds]

Not sure if you have already done a video on this but could you do one about bearings?

[mahitan]

Hi! Plz can you make video on OCR Foundation exam, predict question paper or topics, if possible thankx😊

[channelI]

Do I need to simplify my Ratios? When it doesn't say simplify?

[zkkz]

In question 2 how come u divided it by 2 in the last step?