Skip to main contentSkip to solution

If mean of the data 5, 6, 8, 13, p+3, 8, 3 is 7 and its median is q, then find p+q\sqrt{p+q}.

Solution

Correct Option: 1

Sum = 5+6+8+13+(p+3)+8+3=46+p5+6+8+13+(p+3)+8+3 = 46+p. Mean 7 means sum =7×7=49= 7 \times 7 = 49, so p=3p = 3. Data becomes 5, 6, 8, 13, 6, 8, 3. Sorted: 3, 5, 6, 6, 8, 8, 13. Median (4th value) = 6, so q=6q = 6. Thus p+q=9=3\sqrt{p+q} = \sqrt{9} = 3.

Keyboard Shortcuts

  • Left arrow: Previous question
  • Right arrow: Next question
  • S key: Jump to solution
  • Q key: Jump to question