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नवीनतमलोकप्रियमूल्यांकनपेज देखें 289 of 493कुल सवाल 3944 जॉइन Examsbook

प्र: How many six digit odd numbers can be formed from the digits 0, 2, 3, 5, 6, 7, 8, and 9 (repetition not allowed)? 1926 0

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    8640
    सही
    गलत
  • 2
    720
    सही
    गलत
  • 3
    3620
    सही
    गलत
  • 4
    4512
    सही
    गलत
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उत्तर : 1. "8640"
व्याख्या :

Answer: A) 8640 Explanation: Let the 6 digits of the required 6 digit number be abcdef Then, the number to be odd number the last digit must be odd digit i.e 3, 5, 7 or 9 The first digit cannot be ‘0’ => possible digits = 3, 5, 7, 2, 6, 8 Remaining 4 places can be of 6 x 5 x 4 x 3 ways This can be easily understood by Therefore, required number of ways = 6 x 6 x 5 x 4 x 3 x 4 = 36 x 20 x 12 = 720 x 12 = 8640 ways.

प्र: What occurs once in a minute twice in a moment? 1925 0

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उत्तर :
व्याख्या :

Here the letter 'M' appears once in Minute and twice in a MoMent.

प्र: Maths Challenge 1925 0

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    19
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  • 2
    38
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  • 3
    22
    सही
    गलत
  • 4
    40
    सही
    गलत
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उत्तर : 4. "40"
व्याख्या :

Answer: D) 40 Explanation: To get a pair of black rings 100 percent certain 27 blue + 17 red + 2 black = 40 rings should be taken out Then only we can get 100 % a pair of black rings.

प्र: What is the Formula for Volume? 1925 0

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उत्तर :
व्याख्या :

The formula to find the volume is given by just multiplying Length, Breadth and Height of that object.   Thus, V = L x B X H   Volume Formulae :    1. Volume of Cube of side 's' = s x s x s = s3  cubic units.    2. Volume of Cylinder = πR2h cubic units.   [Where R is Radius and h is height]

प्र: Rajitha invested 25% more than Santhosh. Santhosh invested 30% less than Raju, who invested Rs. 6,000. What is the ratio of the amount that Rajitha invested to the total amount invested by all of them together ? 1925 0

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    25 : 114
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  • 2
    35 : 103
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  • 3
    15 : 108
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  • 4
    41 : 94
    सही
    गलत
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उत्तर : 2. "35 : 103"
व्याख्या :

Answer: B) 35 : 103 Explanation: Santhosh's investment = 6000 x 70/100 = Rs.4200Rajitha's investment = 4200 x 5/4 = Rs.5250Therefore, total amount invested = 6000 + 4200 + 5250 = Rs.15450.Required ratio = 5250 : 15450 = 35 : 103.

प्र: The following bar graph shows the percentage of chairs produced by two companies Neel Kamal and Raj Kamal during five different years. Bar graph also shows the total no. of chairs produced in different years associated with it. Study the graph carefully to answer the following questions. Question 1)  Find the average no. of chairs produced by Raj Kamal in the years 2004, 2006 and 2007 together.   Question 2)  What is the ratio of no. of chairs produced by Neel Kamal in the years 2007 and 2008 together to that by Raj Kamal in the same years together?   Question 3)  If 12% chairs out of total chairs produced in the year 2008 were defective and in them ratio of defective chairs by Raj Kamal and Neel Kamal is 2 : 3 then find the no. of defective chairs produced by Neel Kamal in the year 2008. 1924 0

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उत्तर :
व्याख्या :

Answer 1)   1/3 x (54 x 150 + 60 x 300 + 36 x 450) = 1/3 x 42300 = 14100.   Answer 2) Required ratio of chairs = 64 x 450 + 56 x 50036 x 450 + 44 x 500 = 56800/38200 = 284/191.   Answer 3)   Required number of chairs =  35 x 12100 x 50000= 3600.

प्र: Name the cricketer who has become the first Indian to face 500-plus balls in an Test match innings ? 1924 0

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    Virat Kohli
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  • 2
    Cheteshwar Pujara
    सही
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  • 3
    Karun Nair
    सही
    गलत
  • 4
    Murli Vijay
    सही
    गलत
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उत्तर : 2. "Cheteshwar Pujara"
व्याख्या :

Answer: B) Cheteshwar Pujara Explanation: India's most consistent middle-order batsman Cheteshwar Pujara stormed his way into record books after playing a marathon innings against Australia on fourth day of the third Test match surpassing Rahul Dravid previous best of 495 balls.

प्र: IUPAC full form 1924 0

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    Indian Union of Pure and Applied Chemistry
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    गलत
  • 2
    International Union of Postal and Application Corporation
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    गलत
  • 3
    International Union of Pure and Applied Chemistry
    सही
    गलत
  • 4
    International University of Poland And Combodia
    सही
    गलत
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उत्तर : 3. "International Union of Pure and Applied Chemistry"
व्याख्या :

Answer: C) International Union of Pure and Applied Chemistry Explanation: IUPAC stands for International Union of Pure and Applied Chemistry.   A chemical nomenclature is a set of rules to generate systematic names for chemical compounds. The nomenclature used most frequently worldwide is the one created and developed by the International Union of Pure and Applied Chemistry (IUPAC).

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