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 example 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 examples:

  1. School
    ratios_2 Headteacher think whether the distribution of pupils in race in groups of 4,5,6,9 or 10. How many pupils must have at least school at possible options?
  2. 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?
  3. 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?
  4. Find x
    eq222_23 Solve: if 2(x-1)=14, then x= (solve an equation with one unknown)
  5. Steps
    steps_2 Peter makes steps long 70 cm, John 45 cm long. After how many meters their footsteps meet?
  6. 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
  7. Equation 29
    eq222_18 Solve next equation: 2 ( 2x + 3 ) = 8 ( 1 - x) -5 ( x -2 )
  8. Counting number
    numbers2_49 What is the smallest counting number divisible by 2,5,7,8 and 15?
  9. Customary length
    inch Convert length 65yd 2 ft to ft
  10. Simple equation
    axes_1 Solve for x: 3(x + 2) = x - 18
  11. 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?
  12. 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?
  13. Negative in equation
    eq1_7 2x + 3 + 7x = – 24, what is the value of x?
  14. Lcm simple
    lcm_gears Find least common multiple of this two numbers: 140 175.
  15. Lcm of three numbers
    prime What is the Lcm of 120 15 and 5
  16. Unknown number 11
    numbers_33 That number increased by three equals three times itself?
  17. Cents no more
    cent Janko bought pencils for 35 cents each. Neither he nor the salesperson had small coins just a whole € 1 coin. At least how many pencils had to buy to pay for the whole euros?