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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Box I has 3 red and 2 black balls; Box II has 2 red and 3 black balls. A box is chosen at random and a ball drawn from it is red. What is the probability that it came from Box I?
सही उत्तर: ग) 3/5
By Bayes' theorem: (½ × 3/5)/(½ × 3/5 + ½ × 2/5) = 3/5.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A family has two children, and it is known that at least one of them is a boy. What is the probability that both are boys (boys and girls equally likely)?
सही उत्तर: ग) 1/3
Equally likely cases with at least one boy: BB, BG, GB; only BB qualifies, so 1/3.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A bag has 3 red, 4 white and 5 black balls. Three balls are drawn at random. What is the probability that they are all of different colours?
सही उत्तर: ख) 3/11
Favourable = 3 × 4 × 5 = 60; total = C(12, 3) = 220; probability = 60/220 = 3/11.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A two-digit number is chosen at random. What is the probability that it is divisible by 6?
सही उत्तर: क) 1/6
There are 90 two-digit numbers and 15 multiples of 6 (12 to 96): 15/90 = 1/6.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Two dice are thrown. What is the probability that the product of the numbers shown is even?
सही उत्तर: घ) 3/4
The product is odd only when both are odd (probability 1/4), so P(even) = 3/4.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In how many ways can a team of 5 be chosen from 15 players if one particular player must be included?
सही उत्तर: क) 1,001
Choose the other 4 from the remaining 14: C(14, 4) = 1,001.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Four letters are put into four addressed envelopes at random, one per envelope. In how many ways can every letter go into a wrong envelope?
सही उत्तर: ख) 9
This is the number of derangements of 4: 4!(1 − 1 + 1/2 − 1/6 + 1/24) = 9.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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How many four-digit numbers greater than 5000 can be formed with distinct digits?
सही उत्तर: ख) 2,520
First digit 5–9 (5 ways), then 9 × 8 × 7 for the rest: 5 × 504 = 2,520.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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In how many arrangements of the letters of 'DAUGHTER' are the three vowels NOT all together?
सही उत्तर: घ) 36,000
Total 8! = 40,320; with A, U, E together: 6! × 3! = 4,320; so 40,320 − 4,320 = 36,000.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A polygon has 44 diagonals. How many sides does it have?
सही उत्तर: ग) 11
n(n − 3)/2 = 44 gives n² − 3n − 88 = 0, so n = 11.
💬 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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