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नवीनतमलोकप्रियमूल्यांकनपेज देखें 58 of 103कुल सवाल 824 जॉइन Examsbook

प्र: Twelve percent of Kalyan's monthly salary is equal to the sixteen per cent of Nandu's monthly salary. Sarnesh's monthly salary is half that of Nandu's monthly salary. If sarnesh's annual salary is Rs. 1.08 lacs, What is Kalyan's monthly salary ? 2079 0

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    15,000
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  • 2
    36,000
    सही
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  • 3
    24,000
    सही
    गलत
  • 4
    12,500
    सही
    गलत
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उत्तर : 3. "24,000"
व्याख्या :

Answer: C) 24,000 Explanation: Let K = Kalyan's monthly salaryN = Nandu's monthly salaryS = Sarnesh's monthly salary.Then from given data, 12% of K = 16% of NS = N/2 => N = 2SK = 16/12 x N = 16/12 x 2S= 16/6 x 1.08/12 = 16/6 x 0.09 = 0.24 lacs = 24,000

प्र: If a student walks at the rate of 4 mts/min from his home, he is 4 minutes late for school, if he walks at the rate of 6 mts/min he reaches half an hour earlier. How far is his school from his home ? 2075 0

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    100 mts
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  • 2
    96 mts
    सही
    गलत
  • 3
    98 mts
    सही
    गलत
  • 4
    120 mts
    सही
    गलत
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उत्तर : 3. "98 mts"
व्याख्या :

Answer: C) 98 mts Explanation: Let the distance between home and school is 'x'.Let actual time to reach be 't'.Thus, x/4 = t + 4 ---- (1)and x/6 = t - 30 -----(2)Solving equation (1) and (2)=> x = 98 mts.

प्र: In a certain Business, the profit is 220% of the cost. If the cost increases by 25% but the selling price remains constant, approximately what percentage of the selling price is the profit ? 2073 0

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    61%
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  • 2
    75%
    सही
    गलत
  • 3
    55%
    सही
    गलत
  • 4
    81%
    सही
    गलत
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उत्तर : 1. "61%"
व्याख्या :

Answer: A) 61% Explanation: Let C.P.= Rs. 100. Then, Profit = Rs.220,  S.P. = Rs.320.   New C.P. = 125% of Rs. 100 = Rs. 125  New S.P. = Rs.320. Profit = Rs. (320 - 125) = Rs. 195   Required percentage = 195320×100== 60.9 =~ 61%

प्र: What is the first step in Photosynthesis? 2073 1

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    Formation of ATP
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  • 2
    Joining of 3-carbon atom to form glucose
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  • 3
    Ionization of water
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  • 4
    Excitement of an electron of chlorophyll photon of light
    सही
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उत्तर : 4. "Excitement of an electron of chlorophyll photon of light"
व्याख्या :

Answer: D) Excitement of an electron of chlorophyll photon of light Explanation: The first step in Photosynthesis is Excitement of an electron of chlorophyll photon of light.

प्र: Find out which pair of words can be filled up in the blanks in the sentence to make the sentence meaningfully complete. The policy on foreign direct investment in multi- brand retail may be _______ in a political impasse, but big retail chains are using India as sourcing base and making an _________ on local businesses. 2070 0

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    Caught, impact
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  • 2
    Caught, effect
    सही
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  • 3
    Fetched, affect
    सही
    गलत
  • 4
    Fetching, impact
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उत्तर : 1. "Caught, impact"
व्याख्या :

Answer: A) Caught, impact Explanation: Caught - according to the sentence given caught means to become involved in something, often without wanting to. Impasse - means a situation in which further development is impossible.

प्र: How many birthdays does the average person have? 2070 0

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उत्तर :
व्याख्या :

Any person can have only 1 birthday i.e, the day he was born. And every year we celebrate it's anniversaries.

प्र: The number of ways in which six boys and six girls can be seated in a row for a photograph so that no two girls sit together is  ? 2064 0

  • 1
    2(6!)
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  • 2
    6! x 7
    सही
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  • 3
    6! x ⁷P₆
    सही
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  • 4
    None
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उत्तर : 3. "6! x ⁷P₆"
व्याख्या :

Answer: C) 6! x ⁷P₆ Explanation: We can initially arrange the six boys in 6! ways.Having done this, now three are seven places and six girls to be arranged. This can be done in ⁷P₆ ways. Hence required number of ways = 6! x ⁷P₆

प्र: A single pipe of diameter x has to be replaced by six pipes of diameters 12 cm each. The pipes are used to covey some liquid in a laboratory. If the speed/flow of the liquid is maintained the same then the value of x is ? 2062 0

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    14.69 cm
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  • 2
    29.39 cm
    सही
    गलत
  • 3
    18.65 cm
    सही
    गलत
  • 4
    22.21 cm
    सही
    गलत
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उत्तर : 2. "29.39 cm"
व्याख्या :

Answer: B) 29.39 cm Explanation: Volume of water flowing through 1 pipe of diameter x = Volume discharged by 6 pipes of diameter 12 cms.   As speed is same, area of cross sections should be same.    Area of bigger pipe of diameter x = Total area of 6 smaller pipes of diameter 12  i.e πR2 = 6πR12    Here R = R and R1 = 12/2 = 6    ⇒R2 = 6×6×6    R = 14.696    => D = X = 14.696 * 2 = 29.3938 cm.

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