SSC GD Constable practice question
A cylindrical water tank has a base radius of 7 m and height 10 m. Water is pumped into it at a rate of 22000 litres per minute. How long will it take to fill the tank completely? (Use π = 22/7; 1 m³ = 1000 litres)
From a SSC GD Constable Quantitative Aptitude practice set · Quantitative Aptitude
Tap an option to check your answer.
Show answer and explanation
Correct answer: (A) 70 minutes
Volume of tank = πr²h = (22/7) × 7 × 7 × 10 = 1540 m³ = 1540000 litres. Time = 1540000 ÷ 22000 = 70 minutes.
हिंदी में प्रश्न
एक बेलनाकार पानी की टंकी के आधार की त्रिज्या 7 मीटर और ऊँचाई 10 मीटर है। इसमें 22000 लीटर प्रति मिनट की दर से पानी भरा जाता है। टंकी को पूरी तरह भरने में कितना समय लगेगा? (π = 22/7 का प्रयोग करें; 1 मी³ = 1000 लीटर)
उत्तर जाँचने के लिए किसी विकल्प पर टैप करें।
उत्तर और व्याख्या देखें
सही उत्तर: (A) 70 minutes
टंकी का आयतन = πr²h = (22/7) × 7 × 7 × 10 = 1540 मी³ = 1540000 लीटर। समय = 1540000 ÷ 22000 = 70 मिनट।
More solved Quantitative Aptitude questions
- A carpenter needs two diagonal support beams of lengths 4√2 m and 3√3 m for a roof frame. Using √2 = 1.414 and √3 = 1.732, find the total…
- A sum of ₹5,850 is divided among Anita, Arjun and Sanjay in the ratio 7 : 2 : 6. What is the share of Anita?
- A furniture dealer offers a 24% discount on the marked price of a bookshelf and sells it for ₹2280. Find the marked price of the bookshelf.
- The speed of a boat in still water is 21 km/hr and the speed of the stream is 4 km/hr. Find the upstream speed of the boat.
- Find the area of a triangle with base 52 units and height 61 units.
- A hollow iron roller, length 98cm, girth 176cm, thickness 4cm. Volume of metal (cu.cm) is