2. Sample Papers
  3. Banking

Banking Sample Paper SBI Clerk Grade (Main) Sample Test Paper-3

  • question_answer
    The sum of seven consecutive numbers is 168. What is the sum of the first and the last numbers?

    A)  58

    B)  49

    C)  48

    D)  47

    E)  57

    Correct Answer: C

    Solution :

    \[x+x+1+x+2+x+3+x+\] \[4+x+5+x+6=168\] \[\Rightarrow 7x+21=168\] \[\Rightarrow 7x=168-21=147\] \[\Rightarrow x=\frac{147}{7}=21\] \[\therefore x+x+6=2x+6\] \[=2\times 21+6=48\] Quicker Approach Fourth number\[=\frac{168}{7}=24\] \[\therefore \] First number \[=24-3=21\]and Seventh number \[=24+3=27\]  \[\therefore \]Required sum \[=\text{ }21+27=48\]                       


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