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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If the radius of a circle is increased by 10%, by what percent does its area increase?
सही उत्तर: घ) 21%
Area is proportional to r², and (1.1)² = 1.21, so the area increases by 21%. 20% wrongly doubles the 10%.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A right circular cone has a base radius of 3 cm and a height of 4 cm. What is its curved surface area?
सही उत्तर: ख) 15π cm²
Slant height l = √(3² + 4²) = 5 cm, so CSA = πrl = 15π cm². 24π includes the base (9π), so it is the total surface area.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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What is the volume of a cylinder of radius 7 cm and height 10 cm? (Take π = 22/7)
सही उत्तर: क) 1,540 cm³
V = πr²h = 22/7 × 49 × 10 = 1,540 cm³. 440 cm² is its curved surface area (2πrh).
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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What is the total surface area of a cube with an edge of 5 cm?
सही उत्तर: क) 150 cm²
TSA = 6a² = 6 × 25 = 150 cm². 125 cm³ is the volume, and 100 cm² is the lateral surface area (4a²).
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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What is the area of a triangle with sides 13 cm, 14 cm and 15 cm?
सही उत्तर: क) 84 cm²
By Heron's formula, s = 21 and area = √(21 × 8 × 7 × 6) = √7056 = 84 cm².
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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What is the area of a triangle with sides 3 cm, 4 cm and 5 cm?
सही उत्तर: ग) 6 cm²
3-4-5 is a right triangle (9 + 16 = 25), so area = ½ × 3 × 4 = 6 cm². 12 forgets the ½.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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The area of a square is 50 cm². What is the length of its diagonal?
सही उत्तर: क) 10 cm
The area of a square = d²/2, so d² = 100 and d = 10 cm. 5√2 cm is the side, not the diagonal.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A rectangle has a perimeter of 46 cm and a length of 15 cm. What is its area?
सही उत्तर: घ) 120 cm²
2(l + b) = 46 gives l + b = 23, so b = 8 cm. Area = 15 × 8 = 120 cm².
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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What is the circumference of a circle of radius 14 cm? (Take π = 22/7)
सही उत्तर: ग) 88 cm
Circumference = 2πr = 2 × 22/7 × 14 = 88 cm. 616 cm² is its area.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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What is the area of a circle of radius 7 cm? (Take π = 22/7)
सही उत्तर: घ) 154 cm²
Area = πr² = 22/7 × 49 = 154 cm². 44 cm is the circumference.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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