четверг, 5 января 2017 г.

Test 3. Ratio

 1. On a bus, there are 35 people. 25 of the people are female. Find the ratio of males to females. Give the ratio in its simplest form.

 а)  2:5;      b)  1:5;     
 c)  2:7;      d)  1:7.

 2. One evening, a vet sees 16 dogs and 10 cats. Find the ratio of dogs to cats.

 а)  6:5;      b)  8:5;     
 c)  8:4;      d)  6:3.

 3. There are 29 children in a class. 17 are boys. Find the ratio of boys to girls.

 а)  29:12;      b)  12:17;     
 c)  17:29;      d)  17:12.

 4. In a hall there are 45 chairs and 9 tables. Find the ration of chairs to tables in its simplest form.

 а)  9:4;      b)  5:3;     
 c)  5:1;      d)  6:1.

 5. In a class of 30 children, 18 are boys. Find the ratio of boys to girls in its simplest form.

 а)  3:2;      b)  3:1;     
 c)  5:2;      d)  4:1.

 6. Frank spends £3 on Monday and 50p on Tuesday. Find the ratio of the money spend on Monday to the money spend on Tuesday (remember to change all the money to pence then give the answer in its simplest form)

 а)  6:2;      b)  6:1;     
 c)  5:1;      d)  4:3.

 7. Tanya is 1.6 m tall and Sid is 2 m tall. Find the ratio of Tanya’s height to Sid’s height (remember: 1 m = 100 cm so 2 m = 200 cm and 1.6 m = 160 cm). Give the answer in its simplest form.

 а)  3:2;      b)  6:5;     
 c)  4:5;      d)  4:3.

Maaike makes some models using cubes of different colours.

 8. Model 1 must have red to blue in the ratio 1:2. She uses 4 red cubes. How many blue does she use?

 а)  4;      b)  3;     
 c)  2;      d)  8.

 9. Model 2 must have yellow to green in the ratio 2:3. She uses 6 yellow cubes. How many green does she use?

 а)  6;      b)  9;     
 c)  3;      d)  12.

10. Model 3 must have green to blue in the ratio 3:5. She uses 10 blue cubes. How many green does she use?

 а)  8;      b)  3;     
 c)  6;      d)  4.

11. Model 4 must have white to yellow in the ratio 3:2. She uses 8 yellow cubes. How many white does she use?

 а)  12;      b)  15;     
 c)  8;        d)  10.

12. Model 5 must have white to black to red in the ratio 2:1:3. She uses 3 black cubes. How many white does she use? How many red does she use?

 а)  9 white, 6 red;     
 b)  6 white, 9 red;     
 c)  3 white, 9 red;     
 d)  6 white, 3 red.

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