RATIO AND PROPORTIONS Welcome to your RATIO AND PROPORTIONS There are 24 girls and 30 boys in a class. What is the ratio of girls to boys? 6:4 4:5 5:4 4:6Divide 40m in the ratio of 2:3. 16m and 24 m 15 m and 25m 10 m and 30 m 8 m and 32 m Divide 1 hour in the ratio of 1:5. 20 min and 40 min 15 min and 45 min 10 min and 50 min 5 min and 55 minHow much is 100 increased by 9:4? 70 225 200 250When $169 is divided in the ratio 3:4:6, what is the difference between the largest and the smallest share? $52 $39 $26 $13A recipe to make pasta for 5 people uses 400 g of chicken. How much chicken would be needed to serve 9 people? 800 g 560 g 720 g 750 gThe angles in a triangle are in the ratio of 1: 2: 3. What is the size of the smallest angle? 60° 15° 45° 30°In a village, the ratio of men to women is 3:7. How many women are there if the total number of people in the village is 500? 50 350 250 150It takes 5 people 8 hours to dig a hole. How long would it take 4 people to dig the same hole? 10 hours 12 hours 9 hours 6 hoursIf a map is on a scale of 1:10,000, what distance on the map represents 1 km? 1 cm 100 cm 1 m 10 cmOn a school trip, 3 teachers are required to supervise 18 children. How many teachers are required to supervise 24 children? 6 5 4 2A drink is made by pouring 1 part of squash to 7 parts of water. If there is a total of 720 ml, how much of it is squash? 80 ml 90 ml 100 ml 75 mlA car uses 10 litres of petrol in 75 km. How far it will go on 8 litres? 60 km 80 km 55 km 58 kmA wheel turns through 90 revolutions per minute. How many degrees does it turn through in 1 second? 360° 1.5° 540° 9°A floor is covered by 1600 tiles measuring 10 cm square. How many square tiles of side 4cm would be needed to cover the same floor? 16 100 50 200