GRE प्रश्न और उत्तर का अभ्यास करें

प्र: If (2a + 3b)/(5a - 3b) = 23/5 , then the value of ba is ? 1869 0

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    5
    सही
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  • 2
    4
    सही
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  • 3
    20
    सही
    गलत
  • 4
    28
    सही
    गलत
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उत्तर : 3. "20"
व्याख्या :

Answer: C) 20 Explanation: Given (2a + 3b)/(5a - 3b) = 23/5 => 10a + 15b = 115a - 69b=> 105a = 84b => 5a = 4b a/b = 4/5 => a=4 & b=5=> bxa = 5x4 = 20.

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उत्तर : 1. "8"
व्याख्या :

Answer: A) 8 Explanation: There are 16 small cubes attached to the outer walls of the cuboid.Therefore remaining inner small cubes will be the cubes having two sides green coloured.So the required number = 24 - 16 = 8

प्र: P’s son Q is married with R whose sister S is married to T the brother of Q. How S is related to P ? 1541 0

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    Daughter-in-law
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  • 2
    Sister
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  • 3
    Cousin
    सही
    गलत
  • 4
    Sister-in-law
    सही
    गलत
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उत्तर : 1. "Daughter-in-law"
व्याख्या :

Answer: A) Daughter-in-law Explanation: Since T is the brother of QTherefore, P is the father of Tbut S is the wife of T.Hence, S is the daughter-in-law of P.

प्र: B3D means B is the father of D.B7D means B is the sister of D.B2D means B is the brother of D.B1D means B is the wife of D. Which of the following means F is the mother of K? 1550 0

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    F3M1K
    सही
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  • 2
    F9M4N3K
    सही
    गलत
  • 3
    K3M4N5F
    सही
    गलत
  • 4
    F1M3K
    सही
    गलत
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उत्तर : 4. "F1M3K"
व्याख्या :

Answer: D) F1M3K Explanation: From the given information, F1M → F is the wife of MM3K → M is the father of KTherefore, F is the mother of K.

प्र: Salaries of Karthik, Arun and Akhil were in the ratio 4 : 5 : 6 respectively. If their salaries were increased by 50 per cent, 60 per cent and 50 per cent respectively, what will be the new ratio of the salaries of Akhil, Arun and Karthik ? 1593 0

  • 1
    6 : 8 : 9
    सही
    गलत
  • 2
    8 : 6 : 9
    सही
    गलत
  • 3
    9 : 8 : 6
    सही
    गलत
  • 4
    6 : 5 : 4
    सही
    गलत
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उत्तर : 3. "9 : 8 : 6"
व्याख्या :

Answer: C) 9 : 8 : 6 Explanation: Given the salaries are in the ratio of 4 : 5 : 6   Now the salaries are increased by 50%, 60% and 50% respectively   The New ratio of salaries will be   4 x (150/100) : 5 x (160/100) : 6 x (150/100)   = 6 : 8 : 9   The new ratio of salaries of Akhil, Arun and Karthik is 9 : 8 : 6

प्र: Only if Sheela is happy, then she does not go to work. 2057 0

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    Sheela is not happy and she goes to work.
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  • 2
    Sheela is happy and she does not go to work
    सही
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  • 3
    Sheela is not happy and she does not go to work.
    सही
    गलत
  • 4
    Sheela is happy and she goes to work.
    सही
    गलत
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उत्तर : 1. "Sheela is not happy and she goes to work."
व्याख्या :

Answer: A) Sheela is not happy and she goes to work. Explanation: The event of "Sheela is not going to work" happens only when the event "Sheela is happy" happens. Also, if the event "Sheela is happy" does not happen, then the event "Sheela is not going to work" will not happen. In other words, if it is true that Sheela is not happy, then it means that Sheela is going to work.

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उत्तर : 2. "Only a follows"
व्याख्या :

Answer: B) Only a follows Explanation: The proper nourishment will make the monkeys or human beings work properly. So, the course of action I follows. Course of action II does not follow as there is no information about captive or wild monkeys.

प्र: A clock is started at 11 a.m. By 600 seconds past 6 p.m, the hour hand has turned through ? 2236 0

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    155 degrees
    सही
    गलत
  • 2
    175 degrees
    सही
    गलत
  • 3
    205 degrees
    सही
    गलत
  • 4
    215 degrees
    सही
    गलत
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उत्तर : 4. "215 degrees"
व्याख्या :

Answer: D) 215 degrees Explanation: The total angle traced by the hour hand is the angle traced in 7 hours and 10 minutes.We know that the angle traced by the hour hand in one hour is 30º and in one minute is 1/2º.Therefore, (30º x 7) + (10 x 1/2º) = 215º is the angle traced by the hour hand.

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