Quantitative Aptitude प्रश्न और उत्तर का अभ्यास करें

प्र: A shopkeeper sells one-third of his goods at a profit of 10%, another one-third at a profit of 20%, and the rest at a loss of 6%.What is his overall profit percentage ? 2131 0

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    6%
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    8%
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    10%
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  • 4
    12%
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उत्तर : 2. "8%"
व्याख्या :

Answer: B) 8% Explanation: Let the shopkeeper buy 300g for Rs.300. Now he sells 100g for Rs.110, another 100g for Rs120, and the rest 100g for Rs94.    Therefore, the total amount he receives = Rs.110 + Rs.120 + Rs.94 = 324.    Therefore, the shopkeeper spends Rs.300 and gets back Rs.324.   Therefore, his profit percentage = 24300x100 % = 8%

प्र: If 5th March, 2005 is Monday, what was the day of the week on 5th March, 2004 ? 2131 0

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    Sunday
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    Monday
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    Tuesday
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    Wednesday
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उत्तर : 1. "Sunday"
व्याख्या :

Answer: A) Sunday Explanation: The year 2004 is a leap year. So, it has 2 odd days. But, Feb 2004 not included because we are calculating from March 2004 to March 2005. So it has 1 odd day only. The day on 5th March, 2005 will be 1 day beyond the day on 5th March, 2004. Given that, 5th March, 2005 is Monday. 5th March, 2004 is Sunday (1 day before to 5th March, 2005).

प्र: 88 cubic centimetres of silver is drawn into a wire 1 mm in diameter. The length of the wire in metres will be ? 2131 0

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    112 mts
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    84 mts
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    96 mts
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    108 mts
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उत्तर : 2. "84 mts"
व्याख्या :

Answer: B) 84 mts Explanation: Vol of silver = πR2h  = 66 C.C   Given D= 1mm => R = D/2 = 1/20 cm     => 227×1202×h = 66 = 66 x 400 x (7/22) = 8400 cm = 84 mtrs.

प्र: 2.5, 3.5, 9, 40, ? Find the next number in the above-given series? 2128 0

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    316
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    328
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    323
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    340
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उत्तर : 2. "328"
व्याख्या :

Answer: B) 328 Explanation: 2.5 × 1 + 1 = 3.5 3.5 × 2 + 2 = 9 9 × 4 + 4 = 40 40 × 8 + 8 = 328

प्र: A passenger train covers the distance between station K and L, 40 minutes faster than a goods train. Find this distance between K and L if the average speed of the passenger train is 50 km/h and that of goods train is 30 km/h? 2117 0

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    50 kms
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  • 2
    48 kms
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    46 kms
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  • 4
    44 kms
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उत्तर : 1. "50 kms"
व्याख्या :

Answer: A) 50 kms Explanation: Let the distance be 'd' kms. According to the given data, d30 - d50 = 4060 hrs=> 6d = 300=> d = 50 kms.

प्र: In how many ways the letters of the word NUMERICAL can be arranged so that the consonants always occupy the even places ? 2115 0

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    5!
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    6!
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    4!
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  • 4
    Can't determine
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उत्तर : 4. "Can't determine"
व्याख्या :

Answer: D) Can't determine Explanation: NUMERICAL has 9 positions in which 2, 4, 6, 8 are even positions. And it contains 5 consonents i.e, N, M, R, C & L. Hence this cannot be done as 5 letters cannot be placed in 4 positions. Therefore, Can't be determined.

प्र: P, Q and R secured 45%, 50% and 60% marks respectively in Biology. M’s marks in Biology is 12.5 more than P’s marks and 4 less than R’s marks. Find out the individual marks of four students.   A. For the students, total marks obtained for Biology is 311.5.B. Total of M’s and P’s marks in Biology is 147.5.C. R has obtained 84 marks. 2114 0

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    Only C
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    Only A & B
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    All are required
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    None of the statements is required
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उत्तर : 4. "None of the statements is required"
व्याख्या :

Answer: D) None of the statements is required Explanation: From the given data, (60 - 45)% = 12.5 + 415% = 16.5=> 100% = ?100% = 16.5 x 100/15 = 110 Hence, P = 45% of 110 = 45x110/100 = 49.5 Q = 50% of 110 = 55R = 60% of 110 = 60 x 110/100 = 66M = 12.5 + 49.5 = 62 or 66 - 4 = 62   Hence, no statement is required to answer.

प्र: Find the missing number in the given number series? 5 11 21 44 ? 175 2113 0

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    86
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    78
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    94
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    102
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उत्तर : 1. "86"
व्याख्या :

Answer: A) 86 Explanation: Here the given number series is 5  11  21  44  ?  175   Now the given series follows a pattern, that   x2 + 1, x2 - 1, x2 + 2, x2 - 2, x2 + 3, x2 - 3,...   Then the missing number is x2 - 2   = 44 x 2 - 2 = 88 - 2 = 86   Hence, the missing number in the number series is 86.

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