Quant र Reasoning (SAT/GRE/GMAT) – Quant & Reasoning MCQ
Quant र Reasoning (SAT/GRE/GMAT) – English Test
Quant & Reasoning · English Proficiency & SAT/GRE/GMAT · ४०८ प्रश्न
४०८ प्रश्न उपलब्ध। मोड छान्नुहोस्:
Quant र Reasoning (SAT/GRE/GMAT): 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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If the letters of the word ‘TEAM’ are arranged in a row, how many different arrangements are possible?
सही उत्तर: ख) 3
The word 'TEAM' has 4 distinct letters. The number of ways to arrange them is 4! = 4 * 3 * 2 * 1 = 24. However, the question states options are only 2,3,4 or 6 so there must have been an error in the problem setting.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Quantity A: The number of factors of 36. Quantity B: 8. Which one is greater?
सही उत्तर: क) 7
Factorization of 36 yields 1, 2, 3, 4, 6, 9, 12, 18, and 36, giving a total of nine factors. Therefore, Quantity A is greater than Quantity B.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A box contains 6 red balls and 4 blue balls. What is the probability of selecting a red ball, then another red ball without replacement?
सही उत्तर: घ) 1/5
The probability of selecting a red ball first is 6/10. After taking out one red ball, there are now 5 red balls and 4 blue balls remaining, for a total of 9 balls. The probability of selecting another red ball is then 5/9. Therefore the combined probability is (6/10) * (5/9) = 30/90 = 1/3. A '1/2' would be assuming independent events, and '1/4' or '1/5' involve incorrect calculations.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A train travels at a constant speed. It takes 3 hours to cover a distance of 150 kilometers. What is the speed of the train in kilometers per hour?
सही उत्तर: ग) 60
Speed = Distance / Time. In this case, Speed = 150 km / 3 hours = 50 km/h. The other options are incorrect calculations of speed based on different distances or times.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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If the set A = {1, 2, 3} and the set B = {a, b, c, d}, what is the number of elements in the intersection of sets A and B?
सही उत्तर: क) 0
The intersection of two sets contains only the elements that are common to both. Sets A and B have no elements in common. Therefore, the intersection (A ∩ B) is empty and has 0 elements. The other options represent the number of elements in A or B individually.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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If a train travels at 60 miles per hour, how long will it take to travel 300 miles?
सही उत्तर: क) 3 hours
Time = Distance / Speed. So, Time = 300 miles / 60 mph = 5 hours. Option '3' is too short; '4' and '5' are incorrect calculations. ‘6’ hours would be an excessively long journey.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A shopkeeper buys a shirt for Rs 80 and sells it for Rs 120. He then buys another shirt for Rs 100 and sells it for Rs 150. What is his total profit?
सही उत्तर: ग) Rs 50
The first shirt's profit is Rs (120-80) = Rs 40. The second shirt’s profit is Rs (150-100) = Rs 50. His total profit is Rs 40 + Rs 50 = Rs 90. Option 'Rs 30' and 'Rs 40' are too low; Rs 50 is the sum of the individual profits but not the overall profit, while option 'Rs 60' is incorrect.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A train travels 60 km in 2 hours and 30 minutes. Another train travels 80 km in 3 hours. What is the ratio of their speeds?
सही उत्तर: ख) 2:3
First, convert 2 hours and 30 minutes to hours: 2 + (30/60) = 2.5 hours. The speed of the first train is 60 km / 2.5 h = 24 km/h. The speed of the second train is 80 km / 3 h = 26.67 km/h (approximately). The ratio is then 24:26.67, which simplifies to approximately 2:3. Option '1:1' is incorrect since speeds are different. The other options are less accurate approximations.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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If a number is divisible by both 3 and 5, what is the smallest possible value of that number?
सही उत्तर: ख) 15
A number divisible by both 3 and 5 must be a multiple of their least common multiple (LCM). The LCM of 3 and 5 is 15. Therefore, the smallest possible value is 15.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The area of a rectangle is 48 square centimeters and its perimeter is 28 cm. What are the dimensions (length and width) of the rectangle?
सही उत्तर: ग) 6cm x 8cm
Let 'l' be the length and 'w' be the width. We have l * w = 48 and 2(l + w) = 28, so l + w = 14. Solving for l in the second equation: l = 14 - w. Substituting into the first equation: (14-w)*w=48, which gives 14w – w^2 = 48, or w^2 - 14w + 48 = 0. Factoring this quadratic, we get (w-6)(w-8)=0. Therefore, w=6 or w=8. If w=6, then l=14-6=8. If w=8, then l=14-8=6. So the dimensions are 6cm x 8cm
💬 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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