Ratio and proportion city and guilds (NEED MORE PRACTICE, BECAUSE CAN'T FIND OTHER QUESTIONS TO PRACTICE) (Cancelling is simple)

The exchange rate is 1 US dollar = 0.88 euro. How much euro will I receive from 400 US dollars.

1 : 0.99 400 :x x = 352 euro

A map has a scale of 1:200,000. The distance between two towns on the map is 5.2cm. What is the actual distance between two towns?

1 = 200,000 1 x 5.2 5.2 x 200,000 1,040,000

A room is drawn to a scale of 1:50 A wall of the room is 8cm long on the scale drawing. How long is the actual wall?

1 = 50 8cm = x 1x X 400 x=400

A catering assistance uses 10 spoons of lemon juice to 15 spoons of water... What is this ratio in its simplest form?

10 : 15 (divide by 5) = 2:3

A journey takes 3 hours at 30km per hour. How long does it take at 40km per hour?

2.25 d=s/t s=dt 3tx30s=90d d=30s/3 d=90/40 d=9/4 d=2.25

You have 24 coins. You agree that for every one coin that you give your brother you will keep three. What is the ratio? How many coins will you have? How many coins will your brother have?

24 :3 ( dIVIDE BY 3) = 8:1 Ratio = 8:1 You'll have 8 Brother will have 1? (not sure if it's right)

If it takes 2 hours for 4 workers to complete a job, how long will it take 8 workers to complete a job?

2hr/1 = x/4 1. Cross multiply 2 x 4 = x 8 = x Time = 8/8 2.Cancel Time = 1hr

Gants wants to draw a plan of her bathroom floor. The bathroom floor is a rectangle 3m by 4m. She uses a scale of 1:20. What will the size of the rectangle be on the plan?

3 x 4 = 12 1:20 12:x x = 12 x 20 x = 240 so they multiplied 3 by 4 to get 12... and did the rest

In a recipe, the ratio of weight of flour in grams to number of eggs is 300:2. If I use 6 eggs, How much flour do I need?

300: 2 X: 6 Cross multiply 2x = 1800 2x/2 = 1800/2 Cancel x=900g

A catering assistant uses 3 spoons of lemon juice to 12 spoons of water. What is this ratio in its simplest form?

3:12 (find something that can go into both numbers, which is 3 so) ( divide by 3) = 1 : 4 https://www.khanacademy.org/math/cc-sixth-grade-math/cc-6th-ratios-prop-topic/intro-to-ratios/e/representing-ratios

When we say the scale on a plan is , or if it is 1:50 it means that for every 1 (measurement) it is 50 (measurement) in real life... The scale on a plan is 1:50 = 1/2

50 + 50 1/2 + 1/2

Formula for speed

Distance/time

1 US dollar is approximately 0.89 euro. How many euro would I receive? If you have 100 US dollars and want to convert them to euros at an exchange rate of 1 US dollar to 0.89 euros, how many euros will you receive?

Set out. 1:0.89 100:x Cross multiply 1x = 0.89 x 100 x= 89 euro

A journey takes 4 hours at 30km per hour. How long does it take at 50km per hour?

Speed = Distance/Time 30KM = distance 4h = time So the speed for this would be 30/4 which is 7.5 in time... which is 7 hours and 30 minutes, since (6 x 5 = 30) Now we're trying to find how long it takes at 50km per hour... Now we find speed in the formula in Speed = distance/50 Distance = Speed x Time Distance = 4h x 30km Distance = 120 50=120KM/50h 50x Time/50 = 120 Time = 2.4 2 hours and 24 minutes ​

On a map of scale 1 to 75000, the distance between two towns is represented by a line 6cm long. What is the actual distance?

The distance is 75k * 6 = 450k, the ratio is 1:75000 so 1 cm is actually 75k.

In a recipe, the ratio of the weight of flour to weight of sugar is 2:1. If I use 400g flour, how much sugar do I need?

The formula to find this is 1.Set it out like this2 = 1 400 = X 2.Cross Multiply 2x = 400g/2 2x/2 = 400g/2 3.Cancel x = 200g

Formula for time

Time = X/ # of people