IIT JEE प्रश्न और उत्तर का अभ्यास करें

प्र: 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 0

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    3 minutes
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  • 2
    2 minutes
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  • 3
    4 minutes
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  • 4
    5 minutes
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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 0

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    The Greeks admired the strength and precision of athletes and wanted to portray athletic figures.
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  • 2
    The three main principles of Greek aesthetics are proportion, movement, and rhythm.
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  • 3
    Greeks sculptures are typically stiffly posed, highly styled figures.
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  • 4
    All the above
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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 0

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    The conference was only supposed to be an hour; however, it ran for nearly two and half hours.
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  • 2
    The conference was only supposed to be an hour, however; it ran for nearly two and half hours.
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  • 3
    The conference was only supposed to be an hour. however, it ran for nearly two and half hours.
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  • 4
    The conference was only supposed to be an hour; however it ran for nearly two and half hours.
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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 5

  • 1
    दृढ़
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  • 2
    दूसरा दल
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  • 3
    सत्र
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  • 4
    तृतीय पक्ष
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उत्तर : 3. "सत्र"
व्याख्या :

Answer: C) Session Explanation:

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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 0

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    6
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  • 2
    8
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  • 3
    4
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  • 4
    5
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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 0

  • 1
    TZTSTUN
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  • 2
    TZTSTNF
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  • 3
    TZTUTNF
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    गलत
  • 4
    TZTNTFS
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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

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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

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