Dad has two years more than mom. Mom has 5 times more than Katy. Katy has 2 times less than Jan. Jan is 10 years old. How old is everyone in the family? How old are all together?


J =  10
K =  5
M =  25
O =  27
s =  67


Solution in text K =
Solution in text M =
Solution in text O =
Solution in text s =

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!

To solve this example are needed these knowledge from mathematics:

Next similar examples:

  1. Bakers
    chlieb Baker Martin baked 5 times more cakes than Dennis. How many cakes baked Dennis if Martin bake 25 cakes?
  2. The school
    children_21 The school has 268 boys. Girls are 60 more than boys. How many children are there at school?
  3. Tulips and daffodils
    kvety Farm cultivated tulips and 211 units on 50 units more daffodils. How many spring flowers grown together?
  4. Number
    numbers_10 Which number is 17 times larger than the number 6?
  5. Salary
    czk_koruna Mr. Vesely got for work 874 CZK (Czech Republic Koruna). Mr. Jaros got twice less than Mr. Vesely. How much CZK got Mr. Jaros?
  6. Each chair
    stol_3 Each chair costs twice less than two tables. One table costs 720 Czech crowns. How many crowns are the table and 4 chairs?
  7. Multiples
    numbers2_7 Find all multiples of 10 that are larger than 136 and smaller than 214.
  8. Two numbers
    scientific_2 Find the four times smaller number for numbers 12 and 36 and then add them.
  9. Collection
    calendar Majka gave from her collection of calendars Hanke 15 calendars, Julke 6 calendars and Petke 10 calendars. Still remains 77 calendars. How many calendars had Majka in her collection at the beginning?
  10. Breeder
    slepice1 Seven hens breeder has supplied 350 eggs. How long can deliver, if each of its chickens can withstand at least 5 eggs for week?
  11. Bus 2
    bus2 On the 6-th stop 44 passengers take off from bus. Overall, the 6-th stop 13 passengers were added. How many passengers take on 6-th stop?
  12. Decimal expansion
    books Calculate: 2 . 1 + 0 . 10 + 7 . 10000 + 4 . 1000 + 6 . 100 + 0 . 100000 =
  13. Parenthesis
    casino Fill in the examples correctly brackets: A) 7.9+12:3-2 =23 B) 7.9+12:3-2=75
  14. What is
    number_line_7 What is the value of the smaller of a pair of numbers for which their sum is 78 and their division quotients are 0.3?
  15. Skiing
    sneh Ski gondola starts at a distance of 975 m from the top and is 389 meters long. I went to the bottom station to the top station. How many meters I must go to the top of hill?
  16. Dividing by five and ten
    divide Number 5040 divide by the number 5 and by number 10: a = 5040: 5 b = 5040: 10
  17. Multiples of int
    balls_5 How many multiples of 3 is between the numbers to 20? (zero not count)