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उत्तर :
व्याख्या :

PONDICHERRY is the Indian City with 11 Letters.   Fruit Name : CHERRY Soap Name : RIN Bird Name : HEN Organ : CHIN Used by Student : PEN

प्र: A computer consists of 2771 0

  • 1
    motherboard
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  • 2
    hard disk drive
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  • 3
    central processing unit
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  • 4
    All of the above
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उत्तर : 4. "All of the above"
व्याख्या :

Answer: D) All of the above Explanation: A computer system consists of a computer case, a power supply unit, a motherboard, a central processing unit (CPU), main memory, and a hard disk drive. Input devices include a keyboard, mouse, microphone, video camera, and image scanner. Output devices include a monitor, speakers, and a printer.

प्र: How long have i been alive? 2768 0

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उत्तर :
व्याख्या :

This is a different way of asking your age. It can be how long you have been living in days weeks months and years since your birth date.

प्र: There are 44 students in a hostel, due to the administration,  15 new students has joined. The expense of the mess increase by Rs. 33 per day. While the average expenditure per head diminished by Rs. 3, what was the original expenditure of the mess ? 2765 0

  • 1
    Rs. 404
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  • 2
    Rs. 514
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  • 3
    Rs. 340
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  • 4
    Rs. 616
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उत्तर : 4. "Rs. 616"
व्याख्या :

Answer: D) Rs. 616 Explanation: Let the average expenditure per head be Rs. pNow, the expenditure of the mess for old students is Rs. 44pAfter joining of 15 more students, the average expenditure per head is decreased by Rs. 3 => p-3Here, given the expenditure of the mess for (44+15 = 59) students is increased by Rs. 33Therefore, 59(p-3) = 44p + 3359p - 177 = 44p + 3315p = 210 => p = 14Thus, the expenditure of the mess for old students is Rs. 44p = 44 x 14 = Rs. 616.

प्र: A man can row against the current three fourth of a kilometer in 15 min and returns same distance in 10 min, then ratio of his speed to that of current? 2763 0

  • 1
    5:1
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  • 2
    3:1
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  • 3
    4:1
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  • 4
    2:1
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उत्तर : 1. "5:1"
व्याख्या :

Answer: A) 5:1 Explanation: Let the speed of the man in still water = p kmph Speed of the current = s kmph Now, according to the questions (p + s) x 10 = (p - s) x 15 2p + 2s = 3p - 3s => p : s = 5 : 1   Hence, ratio of his speed to that of current = 5:1.

प्र: Which elements are malleable and good conductors of electricity? 2761 0

  • 1
    tin and silver
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  • 2
    iodine and silver
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  • 3
    tin and xenon
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  • 4
    iodine and xenon
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उत्तर : 1. "tin and silver"
व्याख्या :

Answer: A) tin and silver Explanation: Tin and Silver are malleable and good conductors of electricity. The other combinations have a non metal in them which are bad conductors.

प्र: What is the IUPAC name for the following compound?   H3C-C≡C-H 2753 0

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    Acetylene
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  • 2
    Methyl acetylene
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  • 3
    Butanol
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  • 4
    Decanoic Acid
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उत्तर : 2. "Methyl acetylene"
व्याख्या :

Answer: B) Methyl acetylene Explanation: The IUPAC name of the compound is Methyl Acetylene or Propyne.

प्र: The amount of water (in ml) that should be added to reduce 9 ml lotion, containing 50% alcohol, to a lotion containing 30% alcohol is ? 2751 0

  • 1
    6 ml
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  • 2
    11 ml
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  • 3
    15 ml
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  • 4
    9 ml
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उत्तर : 1. "6 ml"
व्याख्या :

Answer: A) 6 ml Explanation: Let us assume that the lotion has 50% alcohol and 50% water.ratio = 1:1As the total solution is 9mlalcohol = water = 4.5mlNow if we want the quantity of alcohol = 30%The quantity of water = 70%The new ratio = 3:7Let x ml of water be addedWe get,4.54.5+x = 37=> x=6Hence 6ml of water is added.

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