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    linear Equations

    The sum of a two-digit number and the number obtained by reversing the digit is 66. If the digits of the number differ by 2, find the number. How many such numbers are there?

    explain me how to...
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    i think consecutive integers are...

    i think consecutive integers are n,n+1,n+2.......

    for example 1,2,3,.......
  3. Thread: Temperature

    by likithae
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    2,536

    okay.thank you,this only shortcut method or if...

    okay.thank you,this only shortcut method or if any..
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    what is OA?

    what is OA?
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    Find the equation of the circle..

    If the lines 2x-3y=0 and 3x-4y=7 are two diameters of a circle of radius 7, then the equation of the circle is

    (a)x^2+y^2+2x-4y-47=0
    (b)x^2+y^2=49
    (c)x^2+y^2-2x+2y-47=0
    (d)x^2+y^2=17
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    thank you very much. now i understood how to...

    thank you very much. now i understood how to solve it.
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    In terms of prime factors 100! can be written...

    In terms of prime factors 100!

    can be written as 2^1.3^b.5^c.7^d..........

    Now, E_3(100 !)=[100/3]+[100/3^2]+[100/3^3]+[100/3^4]

    =33+11+3+1=48.

    Hence the...
  8. Hi, I thought the best ways was to assume...

    Hi,

    I thought the best ways was to assume values for b in the 2nd equation

    Let b = -5; The equation becomes 2x^2-5x+2=0

    Roots are 1/2 or 2.

    Roots of 1st equation are 3/2 or 3
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    Let the heights be 1,2,3,4,5,6 C D 6 1 A B ...

    Let the heights be 1,2,3,4,5,6

    C D 6
    1 A B

    This should be the arrangement.

    Hence we are left with 4 unknown positions A,B,C,D corresponding to 2,3,4,5 (not in the same order)

    Now,...
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    thank you.but the OA is 5456. help me to solve...

    thank you.but the OA is 5456. help me to solve it.
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    thank you very much.great. but how 7 gold coins...

    thank you very much.great. but how 7 gold coins can be distributed in 3 groups. explain me clearly please.
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    OA is 52!/(17!)^3 3!. please help me to solve...

    OA is 52!/(17!)^3 3!. please help me to solve this problem.
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    how to solve these type of questions

    The number of ways in which 13 gold coins can be distributed among three persons such that each one gets at least two gold coins is:

    (a) 6
    (b) 12
    (c) 24
    (d) 36
  14. Thread: one dollar

    by likithae
    Replies
    4
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    1,075

    thank u....but please explain me the formula...

    thank u....but please explain me the formula little bit clear....
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    please help me i don't know how to solve...

    please help me i don't know how to solve it..........
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