Two rulers

We have two rulers. Scale interval on first rulers are a spaced 1 cm and on second spaced 15 mm. Rulers are attached to each other so that they match initial divider commas. What next dividers commas coincide? Find at least three cases.

Result

a =  30 mm
b =  60 mm
c =  90 mm

Solution:

Solution in text a =
Solution in text b =
Solution in text c =







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

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




Do you want to calculate least common multiple two or more numbers? Do you have a linear equation or system of equations and looking for its solution? Or do you have quadratic equation? Do you want to convert length units?

Next similar math problems:

  1. Number with ones
    numbers2_40 The first digit of the number is 1, if we move this digit to the end we get a 3 times higher number, which is the number?
  2. Lcm simple
    lcm_gears Find least common multiple of this two numbers: 140 175.
  3. Customary length
    inch Convert length 65yd 2 ft to ft
  4. Equation 29
    eq222_18 Solve next equation: 2 ( 2x + 3 ) = 8 ( 1 - x) -5 ( x -2 )
  5. Simple equation 8
    eq1 Solve the following equation: 36=-(1+7x)-6(-7-x)
  6. Balls groups
    gulky_5 Karel pulled the balls out of his pocket and divide it into the groups. He could divide them in four, six or seven, and no ball ever left. How little could be a ball?
  7. Find x
    eq222_23 Solve: if 2(x-1)=14, then x= (solve an equation with one unknown)
  8. Lcm of three numbers
    prime What is the Lcm of 120 15 and 5
  9. Wood dividing
    meter_23 Which equation calculates the number of 1/3-foot pieces that can be cut from a piece of wood that is 7 feet long?
  10. Simple equation 9
    eq2 Solve the following equation: -8y+5=-9y+9
  11. Examination 2
    test In an examination, a teacher awards 2 marks for every correct answer and subtract a mark for every wrong answer. If there are 20 questions and a child scored 25 marks how many correct answer did the child get?
  12. 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?
  13. Unknown number 11
    numbers_33 That number increased by three equals three times itself?
  14. Negative in equation
    eq1_7 2x + 3 + 7x = – 24, what is the value of x?
  15. Steps
    steps_2 Peter makes steps long 70 cm, John 45 cm long. After how many meters their footsteps meet?
  16. Counting number
    numbers2_49 What is the smallest counting number divisible by 2,5,7,8 and 15?
  17. Write decimals
    numbers_34 Write in the decimal system the short and advanced form of these numbers: a) four thousand seventy-nine b) five hundred and one thousand six hundred and ten c) nine million twenty-six