alleryதுத்தநாகம் மற்றும் தாமிரத்தின் உலோகக்கலவையானது 5 : 3 என்ற விகிதத்தில் உள்ளது. அக்கலவையின் 40 kg-ல் எவ்வளவு துத்தநாகம் உள்ளது?
A15 kg
B25 kg
C30 kg
D20 kg
Answer & Solution
Correct answer: B. 25 kg
துத்தநாகமானது உலோகக்கலவையில் 5/8 பங்கு ஆகும், மேலும் 40 kg-ல் 5/8 என்பது 25 kg ஆகும்.
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