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नवीनतमलोकप्रियमूल्यांकनपेज देखें 35 of 103कुल सवाल 824 जॉइन Examsbook

प्र: What kind of tree can you carry in your hand? 2831 0

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उत्तर :
व्याख्या :

Palm tree.

प्र: Rajan's present age is three times his daughter's and nine-thirteenth of his mother's present age. The sum of the present ages of all three of them is 125 years. What is the difference between the present ages of Rajan's daughter and Rajan's mather ? 2827 0

  • 1
    32 years
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  • 2
    48 years
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  • 3
    62 years
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  • 4
    50 years
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उत्तर : 4. "50 years"
व्याख्या :

Answer: D) 50 years Explanation: Let Rajan's present age be 'x' years.=> Then his daughter's present age is = x/3 years.His mother's present age = 13x/9 yearsNow, according to the question,x + x/3 + 13x/9 = 125=> x = 125x9/25 = 45Therefore, required difference = 13x/9 - x/3 = 13x - 3x/9 = 10x/9=> 10 x 45/9 = 50 years.

प्र: Rajesh rows in still water with a speed of 4.5 kmph to go to a certain place and comes back. Find his average speed for the whole journey, if the river is flowing with a speed of 1.5 kmph? 2824 0

  • 1
    2 kmph
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  • 2
    4 kmph
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  • 3
    6 kmph
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  • 4
    8 kmph
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उत्तर : 2. "4 kmph"
व्याख्या :

Answer: B) 4 kmph Explanation: Let the distance in one direction = k kms Speed in still water = 4.5 kmph Speed of river = 1.5 Hence, speed in upstream = 4.5 - 1.5 = 3 kmph Speed in downstream = 4.5 + 1.5 = 6 kmph Time taken by Rajesh to row upwards = k/3 hrs Time taken by Rajesh to row downwards = k/6 hrs Now, required Average speed =Total distanceTotal speed = 2kk3 + k6 = 2k x 186k + 3k = 4 kmph    Therefore, the average speed of the whole journey = 4kmph.

प्र: What City has No People? 2817 0

  • 1
    Velocity
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  • 2
    Electricity
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  • 3
    Elasticity
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  • 4
    All the above
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उत्तर : 4. "All the above"
व्याख्या :

Answer: D) All the above Explanation: Answer for What City has No People can be any of these words which has city in it like Velocity, Elasticity or Electricity. In general the answer for the riddle What City has No People is Electricity.

प्र: A student can divide her books into groups of 5, 9 and 13. what is the smallest possible number of the books ? 2813 0

  • 1
    487
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  • 2
    585
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  • 3
    635
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  • 4
    705
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उत्तर : 2. "585"
व्याख्या :

Answer: B) 585 Explanation: The smallest possible number of books = L.C.M of 5, 9 and 13.Therefore, L.C.M of 5,9 and 13 is = 5 x 9 x 13 = 585.

प्र: In each question given below four conclusions are followed by statements. You have to take the three given statements to be true (even if they seem to be at variance from the commonly known facts). Read the conclusions and decide which of the following set of statement indicate that conclusion is logically follows. Statements :   1. All chairs are tents.  2. No chairs is jugs. 3. No jugs is glasses.  4. No glasses is pots.   Conclusions :   I. All pots are tents. II. All glasses are chair. III. Some jugs are tents. 2809 0

  • 1
    Only conclusion I follows
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  • 2
    Both conclusion II & III follows
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  • 3
    None follows
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  • 4
    Only conclusion II follows
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उत्तर : 3. "None follows"
व्याख्या :

Answer: C) None follows Explanation:

प्र: How much does a clock lose per day, if its hands coincide ever 65 minutes ? 2807 0

  • 1
    1440/143 min
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  • 2
    184/13 min
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  • 3
    1425/18 min
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  • 4
    541/9 min
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उत्तर : 3. "1425/18 min"
व्याख्या :

Answer: C) 1425/18 min Explanation: 55 min. spaces are covered in 60 min.60 min. spaces are covered in ((60/55) x 60) min = 720/11 min.Loss in 65 min. = (720/11 - 65 ) = 5/11Loss in 24 hrs = (5/11 x 1/65 x 24 x 60)min = 1440/143 min.

प्र: If selling price is doubled, the profit triples. Find the profit percent ? 2801 0

  • 1
    100%
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  • 2
    200%
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  • 3
    300%
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  • 4
    400%
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उत्तर : 1. "100%"
व्याख्या :

Answer: A) 100% Explanation: Let the C.P be Rs.100 and S.P be Rs.x, Then The profit is (x-100)Now the S.P is doubled, then the new S.P is 2xNew profit is (2x-100)Now as per the given condition; => 3(x-100) = 2x-100By solving, we get x = 200Then the Profit percent = (200-100)/100 = 100Hence the profit percentage is 100%

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