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Thread: TestFunda Answers - Higher Maths

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    Post TestFunda Answers - Higher Maths

    If log 0.317=0.3332 and log 0.318=0.3364 then find log 0.319 ?


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    Post TestFunda Answers - Higher Maths

    The ratio of incomes of C and D is 3:4.the ratio of their expenditures is 4:5. Find the ratio of their savings if the savings of C is one fourths of his income?


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    Post TestFunda Answers - Higher Maths


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    Post TestFunda Answers - Higher Maths

    log 0.317=0.3332 and log 0.318=0.3364, then
    log 0.319=log0.318+(log0.318-log0.317) = 0.3396  

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    Post TestFunda Answers - Higher Maths

    incomes:3:4
    expenditures:4:5
    3x-4y=1/4(3x)
    12x-16y=3x
    9x=16y
    y=9x/16
    (3x-4(9x/16))/((4x-5(9x/16)))

    ans:12/19  

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    Post TestFunda Answers - Higher Maths

    Is there a shortcut to find out the number of numbers divisible by a certain number within a certain range?
    eg. Find the number of numbers divisible by 7 within the range 100<x<200 


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    Post TestFunda Answers - Higher Maths

    How many numbers can N be such that N! is a multiple of 21^6 but not of 35^12 ?
    Options
    1) 
    26
    2) 
    35
    3) 
    39
    4) 
    34

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    Post TestFunda Answers - Higher Maths

    My solution is coming as 35.

    The approach taken is that the limiting factor in both 35^6 and the 21^12 is 7.
    On calculating we will see that 42! has highest power of 7 as 6.And 76! has highest power of 7 as 11 but 77 will have highest power of 7 as 12.so we need to discard 77.Therefore total number of value of n possible =76-42+1=35.Sorry I mistakenly marked 39.Can you please tell what is the ans?
    Last edited by astha_shaw; 30-Jun-14 at 12:56 PM.

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    Post TestFunda Answers - Higher Maths

    On division by 44,a number leaves a remainder of 13.What is the sum of all possible remainders when the said numbers is divided by 33?
    Options
    1) 
    39
    2) 
    43
    3) 
    27
    4) 
    58

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    Post TestFunda Answers - Higher Maths

    A four digit prime number when divided by 24 leaves a remainder r .How many possible values of r are possible??
    Options
    1) 
    7
    2) 
    8
    3) 
    9
    4) 
    10

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    Post TestFunda Answers - Higher Maths

    The number will be of the form 44k+13.
    Put k=0, rem is 13
    put k=1, rem is 24
    put k=2, rem=2
    put k=3, rem=13
    put k=4,rem=24...so cycle following
    therefore sum of distinct rems=2+24+13=39....is this the ans?

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    Post TestFunda Answers - Higher Maths

    The method which i use is for this case..100<x<200
    100/7=rem(2)...ie 98 divivisible by 7...so in 100 to 200 range lowest no divisible by 100=98+7=105
    200/7=rem(4)...i.e. 196 is the largest within 200 to be divisible by 7...so
    now do highest-lowest/7=196-105/7=91/7=13(ans)

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    Post TestFunda Answers - Higher Maths

    Prime nos are of the form 6k+1 and 6k-1.now in this ques....24q+r can be written as 6*4q+r...
    and by hit n trial take r=7 from 1st option...so 6*4q+7=6*4q+6+1=6(4q+1)+1....therefore it can be written in the form 6k+1...where k in this case is 4q+1.but for 8,9 and 10...you are getting the nos as 6(4q+1)+2,6(4q+1)+3,6(4q+1)+4...which are not in the form 6k+1...so ans is 7 ....wutz the actual answer???

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    Post TestFunda Answers - Higher Maths

    How many positive integers are ther which divides (111)^99 but not 111^98?
    Options
    1) 
    100
    2) 
    15
    3) 
    45
    4) 
    43

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    Post TestFunda Answers - Higher Maths

    A and B start running simultaneously on a circular track from point O in same direction.If ratio of speeds is 6:1respectively,then how many times is A ahead of B by a quarter of the length of the track before they meet at O for the first time?

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    Post TestFunda Answers - Higher Maths

    SAI MAHESH JNTUA COLLEGE
    Today is Thursday.
    B is speaking truth today that he told a lie yesterday.( because B speaks tells lie on Wednesday)
    C is telling a lie today that he has told a lie yesterday ( because C speaks truth on Wednesday)

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    Post TestFunda Answers - Higher Maths


    . Alok and Bhanu play the following min-max game. Given the expression


    N = 9 + X + Y – Z


    Where X, Y and Z are variables representing single digits (0 to 9), Alok would like to maximize N while Bhanu


    would like to minimize it. Towards this end, Alok chooses a single digit number and Bhanu substitutes this for a variable of her choice (X, Y or Z). Alok then chooses the next value and Bhanu, the variable to substitute the value. Finally Alok proposes the value for the remaining variable. Assuming both play to their optimal strategies, the value of N at the end of the game would be


    Options
    1) 
    0
    2) 
    18
    3) 
    27
    4) 
    20

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    Post TestFunda Answers - Higher Maths


    There are some 2 wheelers and 4 wheelers parked total number of wheels present is 240 then how many 4 wheelers were there


    Options
    1) 
    40
    2) 
    30
    3) 
    20
    4) 
    10

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