IIT JEE प्रश्न और उत्तर का अभ्यास करें

प्र: The reflex angle between the hands of a clock at 11:35 is ? 2107 0

  • 1
    137.5 degrees
    सही
    गलत
  • 2
    222.5 degrees
    सही
    गलत
  • 3
    192.5 degrees
    सही
    गलत
  • 4
    330 degrees
    सही
    गलत
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उत्तर : 2. "222.5 degrees"
व्याख्या :

Answer: B) 222.5 degrees Explanation: Apply the formula for finding the angle:Angle=(30h-(11/2)m( where m stands for minutes and h stands for hours)Hence, 30x11 - 11/2x35 = 330 - 192.5 = 137.5 degreesThe reflex angle = 360 - 192.5 degree = 222.5 degrees.

प्र: A woman says, "If you reverse my own age, the figures represent my husband's age. He is, of course, senior to me and the difference between our ages is one-eleventh of their sum." The woman's husband age is ? 2801 0

  • 1
    45
    सही
    गलत
  • 2
    24
    सही
    गलत
  • 3
    42
    सही
    गलत
  • 4
    54
    सही
    गलत
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उत्तर : 4. "54"
व्याख्या :

Answer: D) 54 Explanation: By trial and error method from the given options, as 54 - 45 =  (1/11) x (45+54)  = 99/11  = 9 Hence this satisfies the given conditions. Then the woman's husband age is 54.

प्र: In these series, you will be looking at both the letter pattern and the number pattern. Fill the blank in the middle of the series or end of the series.SCD, TEF, UGH, ____, WKL 2827 0

  • 1
    UJI
    सही
    गलत
  • 2
    VIJ
    सही
    गलत
  • 3
    XLM
    सही
    गलत
  • 4
    DOP
    सही
    गलत
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उत्तर : 2. "VIJ"
व्याख्या :

Answer: B) VIJ Explanation: First letter series S,T,U,Vsecond and third letter series CD,EF,GH,IJ...so answer = VIJ

प्र: India's longest cable-bridge inaugurated by PM Modi in which state ? 1326 0

  • 1
    Assam
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  • 2
    Telangana
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  • 3
    Gujarat
    सही
    गलत
  • 4
    Karnataka
    सही
    गलत
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उत्तर : 3. "Gujarat"
व्याख्या :

Answer: C) Gujarat Explanation: PM Modi Inaugurated India's Longest Cable Bridge in Gujarat, a four-lane bridge over the river Narmada in Bharuch. The bridge is 1344 metres long and 22.8 metres wide. It is built by Larsen and Turbo as a part of the Rs. 379 crore project of the National Highway Authority of India.

प्र: If 200 cats kill 200 mice in 200 days, then 8 cats would kill 8 mice in how many days ? 2273 0

  • 1
    8 days
    सही
    गलत
  • 2
    200 days
    सही
    गलत
  • 3
    800 days
    सही
    गलत
  • 4
    1 day
    सही
    गलत
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उत्तर : 2. "200 days"
व्याख्या :

Answer: B) 200 days Explanation: As given200 cats kill 200 mice in 200 days1 cats kill 1 mouse in 200 daysThen 8 cats kill 8 mice in 200 days.

प्र: 12 year old Manish is three times as old as his brother Rajeev. How old will Manish be when he is twice as old as Rajeev ? 2172 0

  • 1
    12 yrs
    सही
    गलत
  • 2
    14 yrs
    सही
    गलत
  • 3
    16 yrs
    सही
    गलत
  • 4
    18 yrs
    सही
    गलत
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उत्तर : 3. "16 yrs"
व्याख्या :

Answer: C) 16 yrs Explanation: 12 year old Manish is three times as old as his brother Rajeev who must be 4 years old.Diff in ages = 8 years.when Rajeev will become 8 years old, Manish will be 16 yrs old and he will be twice as old as Rajeev.

प्र: A is three times as old as B. C was twice-as old as A four years ago. In four years' time, A will be 31. What are the present ages of B and C ? 1356 0

  • 1
    45, 10
    सही
    गलत
  • 2
    10, 50
    सही
    गलत
  • 3
    9, 50
    सही
    गलत
  • 4
    50, 15
    सही
    गलत
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उत्तर : 3. "9, 50"
व्याख्या :

Answer: C) 9, 50 Explanation: Let the age of A = A, B = B and C = C From given A = 3B 4 years ago, C-4 = 2(A-4); After 4 years A + 4 = 31; A = 27;sub in above B, we get B = 9 C = 2(27 - 4) + 4 = 46 + 4 = 50 Hence B = 9yrs and C = 50yrs.

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उत्तर : 4. "Only b follows"
व्याख्या :

Answer: D) Only b follows Explanation: Valuable suggestion from the retired professors will be helpful for restructuring of an organisation. Hence, management should involve such experienced people. Seeking permission from the employees is not the right course of action.

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