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 train runs for 1 hour at its usual speed, then an accident cuts its speed to 3/5 of normal and it arrives 2 hours late. Had the accident happened 50 km farther along, it would have arrived only 1 hour 20 minutes late. What is the train's usual speed?
सही उत्तर: ख) 50 km/h
Running d km at 3/5 speed costs an extra (5/3 − 1)d/v = 2d/(3v). The 50 km saved cuts the delay by 40 minutes, so 2 × 50/(3v) = 2/3 h, giving v = 50 km/h.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A, B and C can each finish a job alone in 12, 15 and 20 days. The work is done in pairs on successive days: A and B on day 1, B and C on day 2, C and A on day 3, and the cycle repeats. In how many days is the job finished?
सही उत्तर: घ) 7 3/7 days
Per day: A+B = 9/60, B+C = 7/60, C+A = 8/60, so each 3-day cycle does 24/60. After 6 days 48/60 is done; day 7 (A+B) brings it to 57/60, and B+C finish the last 3/60 in 3/7 of day 8: total 7 3/7 days.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The average of five consecutive even numbers is n. What is the average of the next five consecutive even numbers?
सही उत्तर: ख) n + 10
Each of the next five numbers is 10 more than the corresponding number of the first five (five steps of 2), so the average rises by 10.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In a firm, A takes 2/5 of the profit and B and C share the rest equally. If A gets Rs. 1,200 more than B, what is the total profit?
सही उत्तर: क) Rs. 12,000
A gets 2/5 = 0.4 and B gets (1 − 0.4)/2 = 0.3 of the profit; 0.1 × total = 1,200, so total = Rs. 12,000.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In a town the number of men rose by 10% and the number of women by 20%, so that the total population rose by 14%. What was the original ratio of men to women?
सही उत्तर: ग) 3 : 2
By alligation, men : women = (20 − 14) : (14 − 10) = 6 : 4 = 3 : 2.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A shopkeeper marks his goods 20% above cost, allows a 10% discount and also gives only 900 g when he claims to give 1 kg. What is his actual profit percentage?
सही उत्तर: क) 20%
He receives 1.2 × 0.9 = 1.08 times the cost of 1 kg but hands over only 0.9 kg; profit = 1.08/0.9 − 1 = 20%.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A manufacturer, a wholesaler and a retailer make profits of 10%, 15% and 20% respectively on their own cost. If a customer pays Rs. 1,518, what did the article cost the manufacturer to make?
सही उत्तर: घ) Rs. 1,000
Cost × 1.10 × 1.15 × 1.20 = Cost × 1.518 = 1,518, so the manufacturing cost is Rs. 1,000.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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An article is sold at a 10% profit. If both its cost price and its selling price were Rs. 50 higher, the profit would be 8%. What is the cost price?
सही उत्तर: ख) Rs. 200
With CP = C, SP = 1.1C. Then 1.1C + 50 = 1.08(C + 50) gives 0.02C = 4, so C = Rs. 200.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Raw material makes up 60% and labour 40% of a product's cost. If raw-material cost rises by 20% and labour cost by 10%, by what percentage does the total cost rise?
सही उत्तर: क) 16%
Weighted rise = 0.6 × 20% + 0.4 × 10% = 12% + 4% = 16%.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A price is raised by x% and the new price is then reduced by x%. The final price is 4% below the original. What is x?
सही उत्तर: क) 20
(1 + x/100)(1 − x/100) = 1 − x²/10,000 = 0.96, so x² = 400 and x = 20.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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