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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The product of Ravi's age 3 years ago and his age 3 years from now is 112. What is his present age?
सही उत्तर: ग) 11 years
(x − 3)(x + 3) = 112 gives x² = 121, so x = 11.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The average age of a family of five is 24 years. If the youngest member is 8 years old, what was the average age of the family at the time of the youngest member's birth?
सही उत्तर: क) 20 years
Total now = 120; 8 years ago the other four were 120 − 8 − 4×8 = 80 years in total, so the average was 80/4 = 20.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Two teas worth Rs. 126 and Rs. 135 per kg are mixed with a third variety in the ratio 1 : 1 : 2. If the mixture is worth Rs. 153 per kg, what is the price of the third variety per kg?
सही उत्तर: क) Rs. 175.50
126 + 135 + 2x = 4 × 153 = 612, so 2x = 351 and x = Rs. 175.50.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Three solutions containing 20%, 30% and 50% alcohol are mixed in the ratio 1 : 2 : 2 by volume. What is the alcohol percentage of the mixture?
सही उत्तर: ग) 36%
Weighted mean = (20 + 60 + 100)/5 = 36%.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A batsman's average over 30 innings is 42. His highest score exceeds his lowest by 100 runs. Excluding these two innings, his average is 40. What is his highest score?
सही उत्तर: क) 120
Highest + lowest = 30×42 − 28×40 = 140 and highest − lowest = 100, so highest = 120.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A starts a business with Rs. 60,000. B joins after 3 months with Rs. 80,000 and C joins after 6 months with Rs. 1,20,000. Out of a profit of Rs. 1,20,000 at the end of the year, what is C's share?
सही उत्तर: ग) Rs. 40,000
Capital-months: A 7.2 lakh, B 80000 × 9 = 7.2 lakh, C 120000 × 6 = 7.2 lakh; all equal, so C gets one-third = Rs. 40,000.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The salaries of A, B and C are in the ratio 2 : 3 : 5. If they get increments of 15%, 10% and 20% respectively, what is the new ratio of their salaries?
सही उत्तर: ग) 23 : 33 : 60
New salaries ∝ 2.3 : 3.3 : 6, i.e. 23 : 33 : 60.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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If (a + b) : (a − b) = 7 : 3, what is a : b?
सही उत्तर: घ) 5 : 2
By componendo-dividendo, a/b = (7 + 3)/(7 − 3) = 10/4 = 5/2.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Rs. 4,830 is divided among A, B and C so that if Rs. 5, Rs. 10 and Rs. 15 are taken from their shares respectively, the remainders are in the ratio 3 : 4 : 5. What is A's share?
सही उत्तर: ग) Rs. 1,205
Remainders total 4830 − 30 = 4,800, split 3 : 4 : 5 as 1,200 : 1,600 : 2,000; A's share = 1200 + 5 = Rs. 1,205.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A contributes 1/2 of the capital for 1/4 of the time, B contributes 1/3 of the capital for 1/2 of the time, and C contributes the rest of the capital for the whole time. Out of a profit of Rs. 22,000, what is B's share?
सही उत्तर: घ) Rs. 8,000
Shares ∝ 1/8 : 1/6 : 1/6 = 3 : 4 : 4, so B gets 4/11 × 22,000 = Rs. 8,000.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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