Linked price ratio with difference: The prices of a scooter and a television are in the ratio 8 : 7. A scooter costs ₹ 2000 more than a television. Find the price of the television.
Aptitude
Ratio and Proportion
Difficulty: Easy
Choose an option
Answer
Correct Answer: ₹ 14000
Explanation
Introduction / Context:When two prices are in a ratio and their difference is given, you can treat each price as a multiple of a common unit value. The difference equals the difference of ratio parts multiplied by that unit value.
Given Data / Assumptions:
- Scooter : Television = 8 : 7.
- Scooter − Television = ₹ 2000.
Concept / Approach:Let Scooter = 8k and Television = 7k. Then (8k − 7k) = k = 2000. Hence Television = 7k = 7 × 2000.
Step-by-Step Solution:k = ₹ 2000.Television price = 7k = ₹ 14,000.
Verification / Alternative check:Compute scooter price: 8k = ₹ 16,000; difference is ₹ 2000 and ratio 16000 : 14000 reduces to 8 : 7, confirming the setup.
Why Other Options Are Wrong:
- ₹ 10000 and ₹ 18000 don’t maintain an 8 : 7 ratio with a ₹ 2000 gap.
- ₹ 28000 doubles the correct television price.
Common Pitfalls:
- Forgetting that the difference corresponds to exactly one ratio part (8 − 7 = 1).
Final Answer:₹ 14000