IIT JEE प्रश्न और उत्तर का अभ्यास करें

प्र: "Senses are the gateways of knowledge" was emphasised by 8544 0

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    Gurunanak
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    Rousseau
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    Confucius
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    Mahaveera
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उत्तर : 2. "Rousseau"
व्याख्या :

Answer: B) Rousseau Explanation: The Five senses that we have are: Sight, smell, hear, touch and taste. Rousseau emphasised that "Senses are the gateways of knowledge".

प्र: In a certain language, SUPERMAN is coded as TTQDSLBM. How is SPIDERMAN coded in that language ? 8437 0

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    TOJCFQNZO
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    TOJCFSLBM
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    TOJCFONZO
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    TOJCOSLBM
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उत्तर : 1. "TOJCFQNZO"
व्याख्या :

Answer: A) TOJCFQNZO Explanation: There is two sequence. S(odd) P(Even) I(odd) D(even) E(odd) R(even) M(odd) A(even) N(odd)For odd sequence, we want to write next alphabet of thatand for even, we want to write previous alphabet of that. TOJCFQNZO is the Answer.

प्र: The Passive voice of the given Question  Didn't they tell you to be here by six O'clock  ? 8437 0

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    Haven't they told you to be here by six O'clock?
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    You were expected to be hare by six O'clock.
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    They expected you to be here by six O'clock.
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    Weren't you told to be here by six O'clock?
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उत्तर : 4. "Weren't you told to be here by six O'clock?"
व्याख्या :

Answer: D) Weren't you told to be here by six O'clock? Explanation:

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उत्तर :
व्याख्या :

If heater D is used on the third day, heater B has to be used on the fourth day and A has to be used on the second day. But if A is used on second day, then either B or C has to be used on the first day. But if heater B is used on the first day, then according to the question, the requirement of having different heaters on the first day and fourth days would not be fulfilled. Hence the heater that would be used on the first day is C.

प्र: M and N have children A and B.F is spouse of B.D is child of F.P is son in law of N.K is kid of P. Who is male chiled of M and N ? 8409 0

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    B
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    A
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    None
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    Can't be determined
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उत्तर : 1. "B"
व्याख्या :

Answer: A) B Explanation: Spouse means a person's partner in marriage, it can be male or female.But given F is spouse of BAnd P is Son in law of NRelation between F and BRelation between P and A onlyand p is male So, A must be female=> B is male child.

प्र: what is the missing number in the sequence given below? 12  9  13.50  30.37  ?  341.71 8379 0

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    87.63
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    91.12
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    93.41
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    97.94
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उत्तर : 2. "91.12"
व्याख्या :

Answer: B) 91.12 Explanation: Given number series is 12  9  13.5  30.3  ?  341.7 Here the pattern followed by the series is 12  12 x 0.75 = 9 9 x 1.5 = 13.5 13.5 x 2.25 = 30.3 30.37 x 3 = 91.12 91.12 x 3.75 = 341.71   Hence, the missing number in the sequence is 91.12.

प्र: In a competitive exam, the number of passed students was four times the number of failed students. If there had been 35 fewer appeared students and 9 more had failed, the ratio of passed and failed students would have been 2 : 1, then the total number of students appered for the exam ? 8371 0

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    175
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    165
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    155
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    145
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उत्तर : 3. "155"
व्याख्या :

Answer: C) 155 Explanation: Let the number of failed students be x => Number of passed students = 4x  So total number of students was 5x From the given data, If total number of students be 5x – 35 => 4x-35-9/x+9 = 2/1 => 4x – 44 = 2(x + 9) => 4x – 2x = 18 + 44 => x = 31 Total number = 31×5 = 155

प्र: 6, 3, 3, 6, 24, ? Find the next number in the given number series? 8346 0

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    192
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    186
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    182
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    194
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उत्तर : 1. "192"
व्याख्या :

Answer: A) 192 Explanation: Given    6   3   3   6   24   ?   Here   6   6 x 0.5 = 3   3 x 1 = 3    3 x 2 = 6   6 x 4 = 24    24 x 8 = 192   The next number in the given series is 192.

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