alleryStart learning →Flip and pair: what is held fixed, and what follows
Exercise and reference answers
- Matching pairs
- A
- Job fixed
- B
- workers and days vary inversely
- A
- Workforce fixed
- B
- job size and days vary directly
- A
- Workers × days
- B
- the total work
- A
- More hands
- B
- fewer days
Explanation
Two rows cover every version of the question. Source: syllabus Maths, Ch 11 Direct and Inverse Proportions.