Delhi Police Constable practice question
Find the LCM of 14, 15 and 30.
From a Delhi Police Constable Quantitative Aptitude practice set · Quantitative Aptitude
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Correct answer: (D) 210
Prime factorise: 14 = 2 × 7; 15 = 3 × 5; 30 = 2 × 3 × 5. LCM takes every prime at its highest power: 2 × 3 × 5 × 7 = 210.
हिंदी में प्रश्न
14, 15 और 30 का ल.स. (LCM) ज्ञात कीजिए।
उत्तर जाँचने के लिए किसी विकल्प पर टैप करें।
उत्तर और व्याख्या देखें
सही उत्तर: (D) 210
अभाज्य गुणनखंडन: 14 = 2 × 7; 15 = 3 × 5; 30 = 2 × 3 × 5। ल.स. में प्रत्येक अभाज्य की उच्चतम घात ली जाती है: 2 × 3 × 5 × 7 = 210।
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