Simplify ratios
Simplify
12 : 16
3 : 4
200 km travelled in 4 hrs
km/h
50 km/h
Ratio of job and car ads is 4:3.
How many job ads if there are 600 car ads?
800
A family is driving to Brisbane. If they can averarage 90 kms/h over the trip how long does it take to drive the 1080 kms?
12 hrs
Simplify
4 : 40 : 400
1 : 10 : 100
12 heart beats in 10 seconds
bpm?
72 bpm
4 : 3
A plane is travelling at 900 km/h ground speed. How long does it take to fly from Sydney to Perth, if the distance is 6300 kms?
7 hrs
Simplify
3/4 : 1
3 : 4
4 minute shower uses 36 L water
L/min?
9 L/min
2 angles are in complementary and the ratio of the angles is 2 : 1. What is the size of the larger angle?
60 degrees
A petrol tanker discharges 600 L/min. How long does it take to discharge 4800 L?
Simplify
1 1/2 : 2 1/4
2 : 3
$96 in 4 hrs
$/h
$24/h
A 2m length rod is cut to 2 pieces, so the difference of the lengths is 40 cm. What size is the smaller length?
80 cm
Petrol costs 129.90c/L. How much does Mrs Bolton pay for 60 L of petrol? Express in $.
$77.94
Find the value of x
x : 5 = 6 : 10
x = 3
8mL every 6 seconds
L/h
4.8 L/h
The ratio of length and width of a rectangle is 4:3. If the perimeter is 14 cm what is the area?
48 cm^2
On a 30 km trip a cyclist rode the first half of the distance at an average speed of 20 km/h, the rest at 15km/h. What was his average speed for the whole trip (to 2 decimal places)
17.14 km/h