If a:b = 8:8 and b:c = 8:10, then a:b:c = ? MCQ with Answer and Explanation
Question
Report Error
Discuss this Question (0)
Practice More Ratio and Proportion Questions
Question #1
Report Error
If a:b = 8:9 and b:c = 9:7, then a:b:c = ?
Correct Answer: Option C
Explanation:
Combine ratios: a:b = 8:9, b:c = 9:7 ⇒ a:b:c = 8:9:7.
Combine ratios: a:b = 8:9, b:c = 9:7 ⇒ a:b:c = 8:9:7.
This question belongs to:
Maths
Ratio and Proportion
Question #2
Report Error
Ratio of present ages of A and B is 3:7. After 5 years, the ratio becomes 5:10. Present age of A is?
Correct Answer: Option B
Explanation:
Let ages 3k and 7k. Then (3k + 5)/(7k + 5) = 5/10. Solving gives k ≈ 24, age of A = 3*24 = 72.
Let ages 3k and 7k. Then (3k + 5)/(7k + 5) = 5/10. Solving gives k ≈ 24, age of A = 3*24 = 72.
This question belongs to:
Maths
Ratio and Proportion
Question #3
Report Error
Two numbers are in the ratio 5:10 and their sum is 527. Find the numbers.
Correct Answer: Option D
Explanation:
Numbers = 5k and 10k. 5k + 10k = 527 ⇒ k = 35. Thus, numbers are 175 and 350.
Numbers = 5k and 10k. 5k + 10k = 527 ⇒ k = 35. Thus, numbers are 175 and 350.
This question belongs to:
Maths
Ratio and Proportion
No comments yet. Be the first to start the discussion!