To do well on ratio and proportion questions in your GCSE exams, try these helpful tips:
Understanding Ratios: Always turn information into ratios. For example, if 3 boys share 2 pizzas, you can write it as a ratio of 3:2.
Unitary Method: Figure out the value of one part. If 5 apples cost £10, you can find the cost of 1 apple by dividing £10 by 5. So, 1 apple costs £2.
Cross-Multiplication: This is useful for problems that involve proportions. If you have a proportion like a/b = c/d, you can cross-multiply. This means you multiply a with d and b with c to get ad = bc.
Scaling: Adjust your ratios as needed. If your ratio is 4:5 and you need a total of 36 parts, add the parts together: 4 + 5 = 9. Then, find how much each part should be by dividing 36 by 9, which equals 4. So, you can multiply each part by 4.
Practice: It's been shown that students who practice with real-life examples can improve their scores by as much as 20%.
Keep practicing, and you'll become more confident in solving these kinds of questions!
To do well on ratio and proportion questions in your GCSE exams, try these helpful tips:
Understanding Ratios: Always turn information into ratios. For example, if 3 boys share 2 pizzas, you can write it as a ratio of 3:2.
Unitary Method: Figure out the value of one part. If 5 apples cost £10, you can find the cost of 1 apple by dividing £10 by 5. So, 1 apple costs £2.
Cross-Multiplication: This is useful for problems that involve proportions. If you have a proportion like a/b = c/d, you can cross-multiply. This means you multiply a with d and b with c to get ad = bc.
Scaling: Adjust your ratios as needed. If your ratio is 4:5 and you need a total of 36 parts, add the parts together: 4 + 5 = 9. Then, find how much each part should be by dividing 36 by 9, which equals 4. So, you can multiply each part by 4.
Practice: It's been shown that students who practice with real-life examples can improve their scores by as much as 20%.
Keep practicing, and you'll become more confident in solving these kinds of questions!