allery1200 টকাৰ এটা পৰিমাণ দুজন ব্যক্তিৰ মাজত 3 : 5 অনুপাতত ভাগ কৰা হৈছে। ডাঙৰ অংশটো হ'ল:
A450
B750
C600
D700
Answer & Solution
Correct answer: B. 750
1. 3 : 5 অনুপাতটোৱে পৰিমাণটোক 3 + 5 = 8 সমান ভাগত বিভক্ত কৰে।
2. এটা ভাগৰ মান হ'ল 1200 / 8 = 150।
3. ডাঙৰ অংশটোৱে 5 টা ভাগ পায়।
4. গতিকে ই হ'ল 5 x 150 = 750।
5. পৰীক্ষা কৰি চালে, সৰু অংশটো হ'ল 3 x 150 = 450, আৰু 750 + 450 = 1200।
_Source: syllabus Maths, Ch 7 'Comparing Quantities', S7.1 Recalling Ratios and Percentages_
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