Proportional Reasoning-2
CBSE · Class 8 · Mathematics
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आनुपातिक संबंध क्या है?
Answer
आनुपातिक सम्बन्ध वह सम्बन्ध है जिसमें दो या दो से अधिक सम्बन्धित राशियाँ एक ही गुणक से बदलती हैं। यदि एक राशि को गुणा या भाग किया जाय तो सम्बन्ध को संतुलित रखने के लिए दूसरी राशि भी उसी गुणक से बदलती …
What is a proportional relationship?
Answer
A proportional relationship is one in which two or more related quantities change by the same factor. If one quantity is multiplied or divided, the other changes by the same factor to keep the relatio…
How can two ratios a:b and c:d be checked for proportionality?
Answer
Two ratios a:b and c:d are proportional if a × d = b × c, or if a/c = b/d. This is called cross-multiplication. It helps check whether two ratios are equal in proportion.
दो अनुपातों a:b और c:d को आनुपातिकता के लिए कैसे जाँचा जा सकता है?
Answer
दो अनुपात a:b और c:d आनुपातिक होते हैं यदि a × d = b × c, या यदि a/c = b/d. This is called cross-multiplication. It helps check whe, या यदि दो अनुपात समान अनुपात में हैं।…
6:3 और 4:2 के अनुपात क्यों आनुपातिक हैं?
Answer
क्रॉस-गुणा का प्रयोग करें: 6 × 2 = 12 3 × 4 = 12 चूंकि क्रॉस गुणनफल बराबर हैं, इसलिए अनुपात समानुपाती हैं। यही कारण है कि दो इडली मिश्रणों को समतुल्य अनुपात के रूप में माना जा सकता है।…
Why are the ratios 6:3 and 4:2 proportional?
Answer
Use cross-multiplication: 6 × 2 = 12 3 × 4 = 12 Since the cross products are equal, the ratios are proportional. This is why the two idli mixtures can be treated as equivalent proportions.
What does 2:1 mean in the idli batter example?
Answer
The ratio 2:1 means 2 cups of rice for 1 cup of urad dal. A ratio tells how much of one quantity is used compared with another quantity.
इडली के घोल के उदाहरण में 2:1 का क्या मतलब है?
Answer
2:1 का अनुपात का मतलब है 1 कप उड़द दाल के लिए 2 कप चावल। अनुपात बताता है कि एक मात्रा की तुलना में दूसरी मात्रा का कितना उपयोग किया जाता है।…
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Sources & Official References
- NCERT Official — ncert.nic.in
- CBSE Academic — cbseacademic.nic.in
- CBSE Official — cbse.gov.in
- National Education Policy 2020 — education.gov.in
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