IIT JEE प्रश्न और उत्तर का अभ्यास करें

प्र: A man was murdered in his office.   The suspects are Ericson, Maggi, Joel, Benny, Sona, Patick.   A calendar found near the man has blood written 6, 4, 9, 10, 11.   Who is the killer? 14555 0

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    Maggi
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    Ericson
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  • 3
    Sona
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  • 4
    Joel
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उत्तर : 4. "Joel"
व्याख्या :

Answer: D) Joel Explanation: If we consider the given numbers  6, 4, 9, 10, 11 to be the month number then we can easily find the killer. 6 – June – J 4 – April – A 9 – September – S 10 – October – O 11 – November – N Hence the answer is JOEL.

प्र: In a town of 500 people, 285 read Hindu and 212 read Indian Express and 127 read Times of India, 20 read Hindu and Times of India and 29 read Hindu and Indian Express and 35 read Times of India and Indian express . 50 read no news paper . Then how many read only one paper ? 14539 0

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    123
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  • 2
    231
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  • 3
    312
    सही
    गलत
  • 4
    321
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उत्तर : 4. "321"
व्याख्या :

Answer: D) 321 Explanation: No. of people who read Hindu = 285No. of people who read TOI = 127No. of people who read IE = 212Now, No. of people who read Hindu and TOI both is = 20No. of people who read TOI and IE both is = 35No. of people who read Hindu and IE both is = 29Let No. of people who read Hindu , TOI and IE all is = x ;So, only Hindu is = 285-20-29-x = 236-x ;Only TOI is = 127-20-35-x = 72-x ;Only IE is = 212-35-29-x = 148-x ;Now, 236-x + 72-x + 148-x + 20 + 29 + 35 + x + 50 = 500 590 -2x = 500 So, x = 45 this is the value who read all the 3 dailies.So, No. of people who read only one paper is = 236-45 + 72-45 + 148-45 = 191 + 27 + 103 = 321.

प्र: Which among the following is NOT a function of RBI? 13863 0

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    Serve as debt manager to other banks
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    To work as monetary authority and implement its Monetary Policy
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    Serve as banker to central and state governments
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  • 4
    To serve as issuer of bank notes
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उत्तर : 1. "Serve as debt manager to other banks"
व्याख्या :

Answer: A) Serve as debt manager to other banks Explanation: Serve as debt manager to other banks is not a function of RBI Bank.

प्र: From a container of wine, a thief has stolen 15 litres of wine and replaced it with same quantity of water. He again repeated the same process. Thus, in three attempts the ratio of wine and water became 343 : 169. The initial amount of wine in the container was: 13734 1

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    75 litres
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    100 litres
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    150 litres
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  • 4
    120 litres
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उत्तर : 4. "120 litres"
व्याख्या :

Answer: D) 120 litres Explanation: wine(left)wine(added) = 343169   It means  wine(left)wine(initial amount) = 343512    (since 343 + 169 = 512)    Thus,  343x = 512x1 - 15k3    343512 = 783 = 1 - 15k3    1-15k=78=1-18    Thus the initial amount of wine was 120 liters.

प्र: 7 is to 34 as 5 is to 13349 0

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    33
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    गलत
  • 2
    24
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  • 3
    54
    सही
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  • 4
    41
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उत्तर : 4. "41"
व्याख्या :

Answer: D) 41 Explanation: We can get this by any of two explanations.   Answer 1: 41 7 = 3 + 4  = 34 Similarly, 5 = 4 + 1  = 41   Answer 2 :  41 7 - 3 = 4  => 34 Similarly, 5 - 4 = 1  => 41

प्र: Yard is to Fence as Cell is to 12875 0

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    Mitochondria
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    Cytoplasm
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  • 3
    Membrane
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  • 4
    Nucleus
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उत्तर : 3. "Membrane"
व्याख्या :

Answer: C) Membrane Explanation: Fence protects the Yard & Membrane protects the Cell. Fence surrounds the Yard and allows the certain objects in & out of it whereas a Membrane surrounds the Cell & only allows specific nutrients inside of it. Hence, Yard is to Fence as Cell is to Membrane.

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उत्तर : 4. "11 & 9"
व्याख्या :

Answer: D) 11 & 9 Explanation: Let the number of apples in each tree of the 5 farmers be a, b, c, d,e respectively. Therefore total no of apples are 7a, 9b, 11c, 13d and 14e respectively. Given, 7a+1 = 9b+3 = 11c-1 = 13d+3 = 14e-6 = x 9b+3 = 13d+3===> 9b = 13dso take b = 13 and d = 9 9b+3 = 9*13+3 = 120 ie, x=120 substituting7a+1 = 1207a = 119a = 17 11c-1 = 12011c = 121c=11 14e-6 = 12014e = 126e = 9 Yields per tree in the orchards of d 3rd & 4th farmers= 11,9

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