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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60 kg of salt water contains 5% salt. How much water must evaporate so that the salt becomes 8% of the solution?
सही उत्तर: क) 22.5 kg
Salt = 3 kg; at 8% the solution must weigh 3/0.08 = 37.5 kg, so 60 − 37.5 = 22.5 kg must evaporate.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A jar is full of pure juice. Each time, one-quarter of the contents is removed and replaced with water. After how many such operations does the juice first fall below half of the mixture?
सही उत्तर: ग) 3
Juice fraction = (3/4)ⁿ: after 2 steps 0.5625, after 3 steps ≈ 0.42, so 3 operations.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A man rowing upstream drops his hat into the river and notices it 10 minutes later. He turns back immediately and, rowing at the same speed relative to the water, catches the hat 1 km downstream from where it fell. What is the speed of the stream?
सही उत्तर: घ) 3 km/h
Relative to the water he rows away 10 min and back 10 min, so the hat drifts 1 km in 20 minutes: speed = 3 km/h.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Two runners start together from the same point on a 400 m circular track and run in opposite directions at 6 m/s and 4 m/s. How many times do they meet in the first 10 minutes?
सही उत्तर: ख) 15 times
They close 10 m every second, so they meet every 400/10 = 40 s; in 600 s that is 600/40 = 15 meetings.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A car covers 300 km at a uniform speed. If its speed were 10 km/h less, the journey would take 1 hour more. What is its speed?
सही उत्तर: ग) 60 km/h
300/(s − 10) − 300/s = 1 gives s² − 10s − 3,000 = 0, so s = 60 (check: 6 h vs 5 h).
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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Two walkers 20 km apart walk towards each other at 4 km/h and 6 km/h. A dog starts with one walker and runs back and forth between them at 15 km/h until they meet. What total distance does the dog run?
सही उत्तर: ख) 30 km
They meet after 20 ÷ (4 + 6) = 2 hours; the dog runs all that time: 15 × 2 = 30 km.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A and B together earn Rs. 4,000 for a job. A worked 6 days and B worked 8 days, and A's daily wage is twice B's. What is A's share?
सही उत्तर: घ) Rs. 2,400
Shares ∝ days × daily rate = 6 × 2 : 8 × 1 = 12 : 8 = 3 : 2; A gets 4,000 × 3/5 = Rs. 2,400.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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An empty 1,200-litre tank has an inlet that admits 40 litres per minute and an outlet that drains 25 litres per minute. If both are open, how long will the tank take to fill?
सही उत्तर: क) 80 minutes
Net filling rate = 40 − 25 = 15 L/min; time = 1,200 ÷ 15 = 80 minutes.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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A can finish a job in 10 days. He works at his normal rate for 4 days and then, being unwell, at half his normal rate. How many days in all does he take to finish the job?
सही उत्तर: ग) 16 days
In 4 days he does 40%. The remaining 60% at 5% a day takes 12 days; total 16 days.
💬 टिप्पणी / गल्ती रिपोर्ट (०)
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If one and a half hens lay one and a half eggs in one and a half days, how many eggs will 6 hens lay in 6 days at the same rate?
सही उत्तर: क) 24
Rate = 1.5 ÷ (1.5 × 1.5) = 2/3 egg per hen per day; 6 × 6 × 2/3 = 24 eggs.
💬 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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