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Thread: TestFunda Answers - Higher Maths

  1. #201
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    Post TestFunda Answers - Higher Maths

    3 comes in units place 64 times
    so in 10s and 100s place
    so answer is 192 

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    Post TestFunda Answers - Higher Maths


    To win A should always move 1 as
    suppose if A moves 0
    b moves 2
    whatever A moves it will lose.
    But A never loses if it starts with 1 
    Thus answer is option 4 

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    Post TestFunda Answers - Higher Maths

    Question already there in unanswered questions , so deleting the repetition
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    Post TestFunda Answers - Higher Maths

    Seems my solution is correct. This is the approach i am using,

    in case of base 10,

    There are 20 threes within hundred. Hence within thousand there are 200+100 threes present[This 100 is for hundred place].
    i.e 3 *10*10 is the result.

    Hence for base 8 substitute 10 with 8,
    3 *8*8 = 192.
    Though this is not very short method, i prefer doing my calc in base 10.

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    Post TestFunda Answers - Higher Maths

    some denomination question like you have 31 paise,and ticket cost is between 1 to 31 you have to give the exact denominations for the ticket find all no of possible denomination you may predict you must left with atleast few paise?
    Options
    1) 
    5
    2) 
    6
    Additional Notes:

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    Post TestFunda Answers - Higher Maths

    Dude i am not so clear with the question. But from what i could understand the number of denaminations required 1s 5.
    As an approach,
    2n = (Max amount)
    If you need 31 then n must be five atleast. If the solutions turns out to be correct i will provide a better explanation.

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    Post TestFunda Answers - Higher Maths


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    Post TestFunda Answers - Higher Maths

    There are 1000 pillars for a temple. 3 friends Linda, Chelsey, Juli visited that temple. (Some unrelated stuff) Linda is taller than Chelsea and taller than 2 of 1000 pillars. Julia is shorter than Linda. Find the correct sentence?
    Options
    1) 
    Linda is shorter among them
    2) 
    Chelsea is taller than Julia
    3) 
    Chelsea is shorter than Julia
    4) 
    Cannot determine who is taller among Chelsea and Julia

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    Post TestFunda Answers - Higher Maths

    option 4.
    Linda is taller than Chelsea and Julia (or Juli)
    But, we don't know who is taller amongst Chelsea and Julia 

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    Post TestFunda Answers - Higher Maths

     There are certain number of hats and gloves in a box. They are of 41 red, 23 green, 11 orange. Power gone. But a woman can differentiate between hats and gloves.How many draws are required to obtain a pair of each color.

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    Post TestFunda Answers - Higher Maths

    first 40 red
    then 1 red 1 green
    then 22 green
    then 2 orange
    so we get pair of all colors
    So total = 66 

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    Post TestFunda Answers - Higher Maths

    How many 5-digit numbers are possible which have exactly two identical digits (For example 1224 has exactly two identical digits)?
    Options
    1) 
    3024
    2) 
    12096
    3) 
    30240
    4) 
    45360

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    Post TestFunda Answers - Higher Maths

    Six friends decide to share a big cake. Since all of them like the cake, they begin quarreling who gets to first cut and have a piece of the cake. One friend suggests that they have a blindfold friend choose from well shuffled set of cards numbered one to six. You check and find that this method works as it should simulating a fair throw of a die. You check by performing multiple simultaneous trials of picking the cards blindfold and throwing a die. You note that the number shown by the method of picking up a card and throwing a real world die, sums to a number between 2 and 12. Which total would be likely to appear more often – 8,9 or 10?
    a) 8 b)All are equally likely c)9 d)10

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    Post TestFunda Answers - Higher Maths

    8 will have higher probability as
    for 8
    (2,6) (6,2) (3,5) (5,3) and (4,4)
    which is greater than 9 or 10
    so answer is 8 

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    This is an olympiad type question and out of scope for CAT
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    Post TestFunda Answers - Higher Maths


    . Mr behera wants to build A house for his wife. In this there are 5 rooms each having equal area. The length of each room is 4m, breadth is 5 m. the height of the rooms are 2m. if to make a sq meter we need 17 bricks ,then how many bricks are needed to make the floor of  a particular room?



  19. #219
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    Post TestFunda Answers - Higher Maths

    the area of a floor of a particular room 4*5=20 sq mt
    so total brick needed 17*20=340

  20. #220
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    Post TestFunda Answers - Higher Maths

    The area of a floor of a particular room 4*5=20 sq mt
    So total bricks needed =17*20=340

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