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प्र: If 6 men and 8 boys can do a piece of work in 10 days while 26 men and 48 boys can do the same in 2 days what is time taken by 15 men and 20 boys? 2100 0

  • 1
    4 days
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  • 2
    6 days
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  • 3
    7 days
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  • 4
    5 days
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उत्तर : 1. "4 days"
व्याख्या :

Answer: A) 4 days Explanation: Given that  6 men and 8 boys can do a piece of work in 10 days  26 men and 48 boys can do the same in 2 days   As the work done is equal, 10(6M + 8B) = 2(26M + 48B) 60M + 80B = 52M + 96B => M = 2B => B = M/2 ……(1)   Now Put (1) in 15M + 20B => 15M + 10M = 25M Now, 6M + 8B in 10 days => (6M + 4M) 10 = 100M Then D(25M) = 100M => D = 4 days.

प्र: Which vehicle is spelled the same forwards and backwards? 2099 0

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उत्तर :
व्याख्या :

Racecar and Civic are the two vehicles which spelled the same forwards an backwards.

प्र: 5/9 of the part of the population in a village are females. If 30 % of the females are married. The percentage of unmarried males in the total males is ? 2099 0

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    62.5 %
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  • 2
    125 %
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  • 3
    84.32 %
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  • 4
    46.87 %
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उत्तर : 1. "62.5 %"
व्याख्या :

Answer: A) 62.5 % Explanation: Let total population = p number of females = 5p/9number of males =(p-5p/9) = 4p/9married females = 30% of 5p/9 = 30x5p/100x9 = p/6married males = p/6unmarried males =(4p/9-p/6) = 5p/18Percentage of unmarried males in the total males = {(5p/18)/4p/9}x100 = (5p/18)x(9/4p) = 125/2 % = 62.5%

प्र: One fathom is equal to how many meters ? 2098 0

  • 1
    1.7699
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  • 2
    2.0210
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  • 3
    1.8288
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  • 4
    2.1212
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उत्तर : 3. "1.8288"
व्याख्या :

Answer: C) 1.8288 Explanation: One fathom = 1.8288 meters = 6 feet A fathom is a unit of length used especially for measuring the depth of water.

प्र: The series of differences between consecutive prime numbers is represented as Cp1, Cp2, Cp3, .... Cpn , Whare Cp1 is the difference between the second and the first prime number. Find the sum of series when n = 23, given that the 23rd prime number is 83 ? 2096 0

  • 1
    87
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  • 2
    81
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  • 3
    83
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  • 4
    85
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उत्तर : 1. "87"
व्याख्या :

Answer: A) 87 Explanation: Cp1 = p2 - p1 , Cp2 = p3 - p2 ......Cp23 = p24 - p23Sum of series = (p2-p1) + (p3-p2) + .....(p23-p22) + (p24-p23)All terms get cancelled, except p1 = 2 and p24 = 89 So Sum = -p1 + p24Sum of series = -2 + 89 = 87

प्र: The simple interest on a sum of money will be Rs.600 after 10 years. If the principal is trebled after 5 years what will be the total interest at the end of the tenth year ? 2095 0

  • 1
    Rs. 1100
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  • 2
    Rs. 1200
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  • 3
    Rs. 1000
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  • 4
    Rs. 1840
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उत्तर : 2. "Rs. 1200"
व्याख्या :

Answer: B) Rs. 1200 Explanation: P --- 10 ----- 600    P --- 5 ----- 300 3P --- 5 ----- 900                __________                   1200

प्र: Which of the following statements is correct? 2094 0

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    I am very happy to start this Program
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  • 2
    I am too happy to start this Program
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  • 3
    Both A & B
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  • 4
    None
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उत्तर : 1. "I am very happy to start this Program"
व्याख्या :

Answer: A) I am very happy to start this Program Explanation: Here I am very happy to start this Program is correct statement. "Too" is not used with pleasant adjectives. It means 'more than required' and is usually used with unpleasant adjectives. So, 'too healthy', 'too happy', 'too glad' etc are wrong.

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 ? 2092 0

  • 1
    15,000
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  • 2
    36,000
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  • 3
    24,000
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  • 4
    12,500
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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

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