Quiz

Tested student answered correctly on a 4/ 8 questions. Wrong answers was 16. How many questions answered?

Result

n =  32

Solution:

Solution in text n =







Leave us a comment of example and its solution (i.e. if it is still somewhat unclear...):

Showing 0 comments:
1st comment
Be the first to comment!
avatar




To solve this example are needed these knowledge from mathematics:

Do you have a linear equation or system of equations and looking for its solution? Or do you have quadratic equation?

Next similar examples:

  1. The classroom
    school In the seventh class the number of boys and girls are at a ratio of 4:5. Boys are 16. How many total students are in the classroom?
  2. Dropped sheets
    books_26 Three consecutive sheets dropped from the book. The sum of the numbers on the pages of the dropped sheets is 273. What number has the last page of the dropped sheets?
  3. Simple equation
    axes_1 Solve for x: 3(x + 2) = x - 18
  4. Norm
    rajcata Three workers planted 3555 seedlings of tomatoes in one dey. First worked at the standard norm, the second planted 120 seedlings more and the third 135 seedlings more than the first worker. How many seedlings were standard norm?
  5. Equation 29
    eq222_18 Solve next equation: 2 ( 2x + 3 ) = 8 ( 1 - x) -5 ( x -2 )
  6. Negative in equation
    eq1_7 2x + 3 + 7x = – 24, what is the value of x?
  7. Unknown number 11
    numbers_33 That number increased by three equals three times itself?
  8. Forest nursery
    stromcek_2 In the forest nursery after winter, they found that 1/10 stems died out of them. For them, they land 193 new spruces. How many spruces are in the forest nursery?
  9. Find x
    eq222_23 Solve: if 2(x-1)=14, then x= (solve an equation with one unknown)
  10. Book
    matematika_encyklopedia To number pages of thick book was used 4201 digits. How many pages has this book?
  11. Volatile percents
    NYSE_1 Kent is working as a forex trader. Suffered a loss of 65.8 percent. Calculate what percentage must now earn to lift from loss?
  12. Equation
    fractions Find x: x + 1/2 = 1/3
  13. Unknown number
    zlomky_19 I think the number. I'll reduce it to its one-third. The result is then increased by one-third, and I get the number 12.
  14. One-third
    krtek A one-third of unknown number is equal to five times as great as the difference of the same unknown number and number 28. Determine the unknown number.
  15. Infirmary
    osetrovna Two thirds of children from the infirmary went on a trip seventh went to bathe and 40 children remained in the gym. How many children were treated in the infirmary?
  16. 1.5 divided
    eq2_3 1.5 divided by 1 = w divided by 4
  17. A number
    number_line_4 A number increased by 7.9 is 8.3