Quantitative Aptitude प्रश्न और उत्तर का अभ्यास करें

प्र: Find the missing number in the given number series? 2676, 445, ?, 21,6, 2, 1 3937 0

  • 1
    88
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  • 2
    92
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  • 3
    96
    सही
    गलत
  • 4
    102
    सही
    गलत
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उत्तर : 1. "88"
व्याख्या :

Answer: A) 88 Explanation: The given number series 2676, 445, ?, 21,6, 2, 1 follows a pattern that, From right side, 1 1 x 1 + 1 = 2 2 x 2 + 2 = 6 6 x 3 + 3 = 21 21 x 4 + 4 = 88 88 x 5 + 5 = 445 445 x 6 + 6 = 2676   Hence the missing number in the given number series is 88.

प्र: Vinod have 20 rupees. He bought 1, 2, 5 rupee stamps. They are different in numbers by the reason of no change, the shop keeper gives 3 one rupee stamps. So how many stamps Vinod have ? 3933 0

  • 1
    10
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  • 2
    18
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  • 3
    12
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  • 4
    15
    सही
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उत्तर : 1. "10"
व्याख्या :

Answer: A) 10 Explanation: Given total rupees = 20 RsNo. of one rupee stamps = 3Now, remaining money = Rs. 17With that he buys only 2 and 5 rupee stampsLet number of Rs. 5 stamps = KLet number of Rs. 2 stamps = L5K + 2L = 17K = 3, L = 1 (possible)L = 6, K = 1 (possible)=> But given that they are different in number so, K is not equal to 3one rupee stamps = 32 two stamps = 65 rupee stamps = 1Total number of stamps = 10.

प्र: An exhibition was conducted for 4 weeks. The number of tickets sold in 2nd workweek was increased by 20% and increased by 16% in the 3rd workweek but decreased by 20% in the 4th workweek. Find the number of tickets sold in the beginning, if 1392 tickets were sold in the last week ? 3884 0

  • 1
    1124
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  • 2
    1420
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  • 3
    1345
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  • 4
    1250
    सही
    गलत
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उत्तर : 4. "1250"
व्याख्या :

Answer: D) 1250 Explanation: Let initially 'X' ticket has been sold.So now in 2nd week 20% increases, so=> X x 120/100In 3rd week 16% increases, so=> X x (120/100) x (116/100)In 4th week 20% decrease, so=> X x (120/100) x (116/100) x (80/100) = 1392X = 1250.

प्र: 96 is divided into two parts in such a way that seventh part of first and ninth part of second are equal. Find the smallest part ? 3883 0

  • 1
    42
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  • 2
    54
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  • 3
    46
    सही
    गलत
  • 4
    58
    सही
    गलत
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उत्तर : 1. "42"
व्याख्या :

Answer: A) 42 Explanation: Let x and y be the two parts of 96. x/7 = y/9 => x:y = 7:9 => The smallest part is = 7/16 x 96 = 42.

प्र: In an election only two candidates contested. A candidate secured 70% of the valid votes and won by a majority of 172 votes. Find the total number of valid votes  ? 3855 0

  • 1
    446
    सही
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  • 2
    415
    सही
    गलत
  • 3
    404
    सही
    गलत
  • 4
    430
    सही
    गलत
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उत्तर : 4. "430"
व्याख्या :

Answer: D) 430 Explanation: Let the total number of valid votes be 'V'. 70% of V = 70/100 x V = 7V/10 Number of votes secured by the other candidate = V - 7V/100 = 3V/10 Given, 7V/10 - 3V/10 = 172 => 4V/10 = 172 => 4V = 1720 => V = 430.

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उत्तर : 4. "24"

प्र: The number of ways in which 8 distinct toys can be distributed among 5 children? 3841 0

  • 1
    5P8
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  • 2
    5^8
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  • 3
    8P5
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  • 4
    8^5
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    गलत
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उत्तर : 2. "5^8"
व्याख्या :

Answer: B) 5^8 Explanation: As the toys are distinct and not identical, For each of the 8 toys, we have three choices as to which child will receive the toy. Therefore, there are 58 ways to distribute the toys.   Hence, it is 58 and not 85.

प्र: 194, 194, 191, 183, 168, ? Find the next number in the above series? 3838 0

  • 1
    154
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  • 2
    156
    सही
    गलत
  • 3
    144
    सही
    गलत
  • 4
    143
    सही
    गलत
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उत्तर : 3. "144"
व्याख्या :

Answer: C) 144 Explanation: Here the series follows, 194 194 - (1x1 - 1) = 194 194 - (2x2 - 1) = 191 191 - (3x3 - 1) = 183 183 - (4x4 - 1) = 168 168 - (5x5 - 1) = 144

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