More ratio's questions

1. Rosa prepared 8 kilograms of dough after working 4 hours. How many hours did Rosa work if she prepared 16 kilograms of dough? Assume the relationship is directly proportional.

1. Tisha cycled a total of 12 kilometres by making 3 trips to work. How many trips will Tisha have to make to cycle a total of 16 kilometres? Assume the relationship is directly proportional.
2. Joel jarred 9 litres of jam after 3 days. How much jam did Joel jar if he spent 5 days making jam? Assume the relationship is directly proportional.
3. Dinah learnt a total of 10 starter recipes over the course of 2 weeks of culinary school. After 4 weeks of culinary school, how many total starter recipes will Dinah know? Assume the relationship is directly proportional.
4. Gabby grew 10 flowers with 2 seed packets. How many seed packets does Gabby need to have a total of 15 flowers in her garden? Assume the relationship is directly proportional.
5. Tatsu took a total of 15 quizzes over the course of 3 weeks. After attending 4 weeks of school this quarter, how many quizzes will Tatsu have taken in total? Assume the relationship is directly proportional.
6. Ken's graduation picnic will cost $9 if it has 3 attendees. If there are 4 attendees, how much will Ken's graduation picnic cost? Assume the relationship is directly proportional.
7. Mika's office recycled a total of 6 kilograms of paper over 3 weeks. After 9 weeks, how many kilograms of paper will Mika's office have recycled? Assume the relationship is directly proportional.
8. Shereen grew 12 flowers with 2 seed packets. With 3 seed packets, how many total flowers can Shereen have in her garden? Assume the relationship is directly proportional.
9. Alana jarred 16 litres of jam after 4 days. How much jam did Alana jar if she spent 5 days making jam? Assume the relationship is directly proportional.
10. Abby took a total of 6 quizzes over the course of 2 weeks. How many weeks of school will Abby have to attend this quarter before she will have taken a total of 12 quizzes? Assume the relationship is directly proportional.
11. Whitney walked a total of 14 kilometres by making 7 trips to school. After 8 trips to school, how many kilometres will Whitney have walked in total? Assume the relationship is directly proportional.
12. Sheng learnt to sing a total of 14 pieces over the course of 7 weeks of voice lessons. How many weeks of lessons will Sheng need before he will be able to sing a total of 18 pieces? Assume the relationship is directly proportional.
13. Zachary took a total of 10 pages of notes during 2 hours of class. After attending 3 hours of class, how many total pages of notes will Zachary have in his notebook? Assume the relationship is directly proportional.
14. Dave grew 8 plants with 4 seed packets. With 9 seed packets, how many total plants can Dave have in his back garden? Assume the relationship is directly proportional.
15. Tatsu used 10 centimetres of tape to wrap 2 presents. How much tape will Tatsu need in all if he has to wrap 4 presents? Assume the relationship is directly proportional.
16. Kendall earned a total of $8 by selling 2 cups of lemonade. After selling a total of 4 cups of lemonade, how much money will Kendall have made in all? Assume the relationship is directly proportional.
17. Brandy's retirement party will cost $9 if she invites 3 guests. What is the maximum number of guests there can be if Brandy can afford to spend a total of $18 on her retirement party? Assume the relationship is directly proportional.
18. Matthew cycled a total of 12 kilometres by making 3 trips to work. How many trips will Matthew have to make to cycle a total of 16 kilometres? Assume the relationship is directly proportional.

Mei's birthday party will cost $16 if she invites 8 guests. If there are 10 guests, how much will Mei's birthday party cost? Assume the relationship is directly proportional.

20. The corporate team-building event will cost $12 if it has 3 attendees. If there are 5 attendees, how much will the corporate team-building event cost? Assume the relationship is directly proportional.
21. Ozzie bought 6 souvenirs during 2 days of holiday. How many days will Ozzie have to spend on holiday before he will have bought a total of 9 souvenirs? Assume the relationship is directly proportional.
22. Brody prepared 8 kilograms of dough after working 4 hours. How much dough did Brody prepare if he worked for 7 hours? Assume the relationship is directly proportional.
23. Christine took a total of 15 quizzes over the course of 5 weeks. How many weeks of school will Christine have to attend this quarter before she will have taken a total of 18 quizzes? Assume the relationship is directly proportional.