Quantitative (गणित) – Quantitative Ability MCQ
Quantitative (गणित) – व्यवस्थापन प्रवेश
Quantitative Ability · Management Entrance – English, Quant, Logical Reasoning & GK · १,३१७ प्रश्न
१,३१७ प्रश्न उपलब्ध। मोड छान्नुहोस्:
Quantitative (गणित): प्रश्न र उत्तर
सही लागेको विकल्पमा थिच्नुहोस्। सही भए हरियो, गलत भए रातो देखिन्छ; ३ सेकेन्डपछि सही उत्तर र व्याख्या देखिन्छ।
सही: ० / ०
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A can do a work in 18 days and B in 24 days. They start together, but A leaves 3 days before the work is finished. In how many days is the work completed?
सही उत्तर: ग) 12 days
If the work takes t days, A works (t − 3) days: (t − 3)/18 + t/24 = 1, i.e. 4(t − 3) + 3t = 72, so 7t = 84 and t = 12.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Ram is twice as old as Shyam was when Ram was as old as Shyam is now. If Ram is 40 years old now, how old is Shyam?
सही उत्तर: ग) 30 years
Let Shyam be S; Ram was S years old (40 − S) years ago, when Shyam was S − (40 − S) = 2S − 40. So 40 = 2(2S − 40), giving S = 30.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Four years ago the ratio of the ages of A and B was 3 : 4. Four years hence it will be 5 : 6. What is B's present age?
सही उत्तर: क) 20 years
Ages 4 years ago: 3x and 4x. Then (3x + 8)/(4x + 8) = 5/6 gives 18x + 48 = 20x + 40, so x = 4. B now = 4x + 4 = 20 years.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The average salary of all workers in a workshop is Rs. 8,000. The average salary of 7 technicians is Rs. 12,000 and that of the rest is Rs. 6,000. How many workers are there in total?
सही उत्तर: क) 21
7 × 12000 + (n − 7) × 6000 = 8000n gives 84000 − 42000 = 2000n, so n = 21.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The average of 20 numbers is zero. At most, how many of them can be greater than zero?
सही उत्तर: घ) 19
The sum is zero, so at least one number must be negative (or all zero); up to 19 numbers can be positive if one large negative number balances them.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The average weight of A, B and C is 45 kg. The average weight of A and B is 40 kg and that of B and C is 43 kg. What is the weight of B?
सही उत्तर: ख) 31 kg
A + B + C = 135, A + B = 80 so C = 55; B + C = 86 so B = 86 − 55 = 31 kg.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The population of a village decreased by 10% in one year and then increased by 10% in the next year. If the population is now 9,900, what was it two years ago?
सही उत्तर: ख) 10,000
Present = P × 0.9 × 1.1 = 0.99P = 9900, so P = 10,000.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A bag has 40 coins, all Rs. 10 and Rs. 5 coins, with a total value of Rs. 290. How many Rs. 10 coins are there?
सही उत्तर: ग) 18
Let there be a ten-rupee coins: 10a + 5(40 − a) = 290, so 5a = 90 and a = 18.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A starts a business with Rs. 50,000 and withdraws Rs. 20,000 after 6 months. B invests Rs. 40,000 for the whole year. Out of a year-end profit of Rs. 24,000, what is A's share?
सही उत्तर: ग) Rs. 12,000
A's capital-months = 50,000 × 6 + 30,000 × 6 = 4,80,000; B's = 40,000 × 12 = 4,80,000. The ratio is 1 : 1, so A gets Rs. 12,000.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The incomes of A and B are in the ratio 5 : 4 and their expenditures are in the ratio 3 : 2. If each saves Rs. 4,000, what is A's income?
सही उत्तर: ख) Rs. 10,000
5x − 3y = 4000 and 4x − 2y = 4000. From the second, y = 2x − 2000; then 5x − 6x + 6000 = 4000, so x = 2000 and A's income = 5x = Rs. 10,000.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
यी अभ्यास प्रश्न हुन्, आधिकारिक प्रश्न होइनन्। पाठ्यक्रम, विज्ञापन र नतिजाका लागि सम्बन्धित निकायको आधिकारिक वेबसाइट हेर्नुहोस्। उत्तरमा गल्ती भेटे प्रश्नमुनिको "टिप्पणी / गल्ती रिपोर्ट" मा लेख्नुहोस्।
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