alleryএখন গাড়ীয়ে 60 km যাবলৈ 4 litres পেট্ৰ'ল ব্যৱহাৰ কৰে। 12 litres পেট্ৰ'লেৰে ই কিমান দূৰ যাব?
A120 km
B180 km
C150 km
D240 km
Answer & Solution
Correct answer: B. 180 km
1. দূৰত্ব আৰু পেট্ৰ'ল প্ৰত্যক্ষ সমানুপাতত আছে: এটা বৃদ্ধি পালে আনটোও একে অনুপাতত বৃদ্ধি পায়।
2. পেট্ৰ'ল 4 litres ৰ পৰা 12 litres হৈছে, যিটো তিনিগুণ বেছি।
3. গতিকে দূৰত্বও তিনিগুণ বেছি হ'ব।
4. সেয়া হ'ল 3 x 60 = 180 km।
5. অনুপাতটো পৰীক্ষা কৰিলে, 60 / 4 = 180 / 12 = 15 km per litre, যিটো ধ্ৰুৱক হৈ থাকে।
_উৎস: syllabus Maths, Ch 11 'Direct and Inverse Proportions', S11.2 Direct Proportion_
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