Civil Service Exam Reviewer · Ratio and Proportion · hard
Two similar rectangles have corresponding sides in the ratio 5 : 6. What is the ratio of their areas?
- 5 : 6
- 125 : 216
- 10 : 12
- 25 : 36
Answer
D. 25 : 36
Solution
For similar figures, areas scale as the square of the side ratio: 25 : 36.
More Ratio and Proportion questions
- A gear with 56 teeth rotating at 140 rpm drives a gear with 32 teeth. How fast does the second gear rotate?
- Alloy X contains gold and copper in the ratio 4 : 5; alloy Y contains them in the ratio 5 : 1. If equal weights of X and Y are melted…
- The ratio of the number of pupils to teachers in a school is 30 : 1. If there are 24 teachers, how many pupils must be added so that the…
- ₱26,640 is shared among A, B and C such that A : B = 1 : 4 and B : C = 5 : 3. How much does C receive?
- Two similar boxes have corresponding sides in the ratio 1 : 5. What is the ratio of their volumes?
- Hazel and Nina share some money in the ratio 7 : 4. Hazel receives ₱9,570 more than Nina. How much money was shared?
- Alloy X contains gold and copper in the ratio 3 : 1; alloy Y contains them in the ratio 1 : 2. If equal weights of X and Y are melted…
- If 6 kilograms of pork cost ₱1,860, how much will 47 kilograms cost?
- A recipe for 8 servings uses 6 cup(s) of flour. How many cups are needed for 17 servings?
- If A : B = 2 : 4 and B : C = 5 : 2, what is A : B : C?