2. Sample Papers
  3. SSC

SSC Sample Paper SSC CGL - Sample Paper-7

  • question_answer
    Out of three numbers, the first is twice the second and is half of the third. If the average of three numbers is 56, then difference of first and third number is

    A)  12                               

    B)  20

    C)  24                               

    D)  48

    Correct Answer: D

    Solution :

    Let second number \[=x\] \[\therefore \]      first number \[=2x\] And      third number \[=4x\] According to question, \[56=\frac{2x+x+4x}{3}\] \[\Rightarrow \]   \[x=\frac{56\times 3}{7}=74\] \[\therefore \] Requited difference \[=4x-2x=2x=2\times 24=48\]


You need to login to perform this action.
You will be redirected in 3 sec spinner