RRB JE practice question
A trader wants to prepare 15 kg of a mixture worth ₹86/kg by mixing tea worth ₹40/kg with tea worth ₹110/kg. How much of the cheaper tea should he use?
From a RRB JE Quantitative Aptitude practice set · Quantitative Aptitude
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Correct answer: (B) 5.14 kg
Ratio (cheap:dear) = 12:23. Cheap tea qty = 15×12/(12+23) = 5.14 kg.
अनुपात (सस्ता:महंगा) = 12:23। सस्ती चाय की मात्रा = 15×12/(12+23) = 5.14 किग्रा।
हिंदी में प्रश्न
एक व्यापारी ₹40/किग्रा वाली चाय को ₹110/किग्रा वाली चाय के साथ मिलाकर ₹86/किग्रा वाला 15 किग्रा मिश्रण बनाना चाहता है। उसे कितनी सस्ती चाय लेनी चाहिए?
उत्तर जाँचने के लिए किसी विकल्प पर टैप करें।
उत्तर और व्याख्या देखें
सही उत्तर: (B) 5.14 किग्रा
Ratio (cheap:dear) = 12:23. Cheap tea qty = 15×12/(12+23) = 5.14 kg.
अनुपात (सस्ता:महंगा) = 12:23। सस्ती चाय की मात्रा = 15×12/(12+23) = 5.14 किग्रा।
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