IIT JEE प्रश्न और उत्तर का अभ्यास करें
8प्र: Pipe K fills a tank in 30 minutes. Pipe L can fill the same tank 5 times as fast as pipe K. If both the pipes were kept open when the tank is empty, how much time will it take for the tank to overflow ? 3023 05b5cc75ee4d2b4197774fcc5
5b5cc75ee4d2b4197774fcc5- 13 minutesfalse
- 22 minutesfalse
- 34 minutesfalse
- 45 minutestrue
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उत्तर : 4. "5 minutes"
व्याख्या :
Answer: D) 5 minutes Explanation: Let the total capacity of tank be 90 liters.Capacity of tank filled in 1 minute by K = 3 liters.Capacity of tank filled in 1 minute by L = 15 liters.Therefore, capacity of the tank filled by both K and L in 1 minute = 18 liters.Hence, time taken by both the pipes to overflow the tank = 90/18 = 5 minutes.
प्र: Which statement about greek sculpture is false? 3020 05b5cc639e4d2b4197774ba6c
5b5cc639e4d2b4197774ba6c- 1The Greeks admired the strength and precision of athletes and wanted to portray athletic figures.false
- 2The three main principles of Greek aesthetics are proportion, movement, and rhythm.false
- 3Greeks sculptures are typically stiffly posed, highly styled figures.true
- 4All the abovefalse
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उत्तर : 3. "Greeks sculptures are typically stiffly posed, highly styled figures."
व्याख्या :
Answer: C) Greeks sculptures are typically stiffly posed, highly styled figures. Explanation: Greek Sculpture are typically stiff, posed & highly styled figures is the false answer.
प्र: Which sentence is Punctuated correctly? 3014 05b5cc6b3e4d2b4197774d468
5b5cc6b3e4d2b4197774d468- 1The conference was only supposed to be an hour; however, it ran for nearly two and half hours.true
- 2The conference was only supposed to be an hour, however; it ran for nearly two and half hours.false
- 3The conference was only supposed to be an hour. however, it ran for nearly two and half hours.false
- 4The conference was only supposed to be an hour; however it ran for nearly two and half hours.false
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उत्तर : 1. "The conference was only supposed to be an hour; however, it ran for nearly two and half hours."
व्याख्या :
Answer: A) The conference was only supposed to be an hour; however, it ran for nearly two and half hours. Explanation: The correct punctuated sentence is A The conference was only supposed to be an hour; however, it ran for nearly two and half hours.
प्र: __________ कुकीज़ को क्षणिक कुकीज़ के रूप में भी जाना जाता है। 3008 55b5cc6c4e4d2b4197774dc95
5b5cc6c4e4d2b4197774dc95- 1दृढ़false
- 2दूसरा दलfalse
- 3सत्रtrue
- 4तृतीय पक्षfalse
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उत्तर : 3. "सत्र"
व्याख्या :
Answer: C) Session Explanation:
प्र: In a cinema hall for the matinee show which started at 2.30 pm and ended at 5.30 pm the vehicle parking lot had only three wheelers (auto rickshaws) and four wheelers. Today the wheels of the vehicles parked was counted and found to be 240. What could be the number of three wheelers parked therein ? 3007 05b5cc71ee4d2b4197774f572
5b5cc71ee4d2b4197774f572- 148true
- 241false
- 345false
- 443false
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उत्तर : 1. "48"
व्याख्या :
Answer: A) 48 Explanation: 3X + 4y = 240by substitute through options 48 is correct
प्र: The average weight of a group of boys is 30 kg. After a boy of weight 35 kg joins the group, the average weight of the group goes up by 1 kg. Find the number of boys in the group originally ? 3004 05b5cc6ebe4d2b4197774ee6e
5b5cc6ebe4d2b4197774ee6e- 16false
- 28false
- 34true
- 45false
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उत्तर : 3. "4"
व्याख्या :
Answer: C) 4 Explanation: Let the number of boys in the group originally be x.Total weight of the boys = 30xAfter the boy weighing 35 kg joins the group, total weight of boys = 30x + 35So 30x + 35 + 31(x + 1) = > x = 4.
प्र: In a certain code ARCHIVE is written as DSBGFWJ. How is SYSTEMS is written in that code ? 3004 05b5cc75ee4d2b4197774fcf8
5b5cc75ee4d2b4197774fcf8- 1TZTSTUNfalse
- 2TZTSTNFtrue
- 3TZTUTNFfalse
- 4TZTNTFSfalse
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उत्तर : 2. "TZTSTNF"
व्याख्या :
Answer: B) TZTSTNF Explanation: ARC -> CRA ->(+1) DSB H -> H ->(-1) GIVE -> EVI ->(+1) FWJ Similarly, SYS -> SYS ->(+1) TZT T -> T ->(-1) SEMS -> SME ->(+1) TNF
प्र: On a ruler's tombstone, it is said that one sixth of his life was spent in childhood and one twelfth as a teenager. One seventh of his life passed between the time he became an adult and the time he married; five years later, his son was born. Alas, the son died four years before he did. He lived to be twice as old as his son did. How old did the ruler live to be ? 3003 05b5cc741e4d2b4197774f981
5b5cc741e4d2b4197774f981- 184 yearstrue
- 272 yearsfalse
- 382 yearsfalse
- 464 yearsfalse
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उत्तर : 1. "84 years"
व्याख्या :
Answer: A) 84 years Explanation: Let the age of ruler is x so that of son = x/2 (given)Now according to the given condition (x/6) + (x/12) + (x/7) + 5 + (x/2) + 4 = x=> x = 84