The tale of the Seven Ravens were seven brothers, each of whom was born exactly 1.5 years after the previous one. When the eldest of the brothers was 4-times older than the youngest, mother all curse. How old was seven ravens brothers when their mother cursed?


k1 (youngest) =  3
k2 =  4.5
k3 =  6
k4 =  7.5
k5 =  9
k6 =  10.5
k7 (oldest) =  12


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!

Next similar examples:

  1. After 16 years
    diana After 16 years will Dana be five times older as she was four years ago. After how many years will Dana celebrate her 16th birthday?
  2. Cans
    konzervy How many cans must be put in the bottom row if we want 182 cans arrange in 13 rows above so that each subsequent row has always been one tin less? How many cans will be in the top row?
  3. Timeage
    deep Seven times of my age is 8 less than the largest two-digit number. How old I am?
  4. 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?
  5. Walnuts
    orechy_2 x walnuts were in the mission. Dano took 1/4 of nuts Michael took 1/8 from the rest and John took 34 nuts. It stayed here 29 nuts. Determine the original number of nuts.
  6. Factory
    factory_1 In the factory workers work in three shifts. In the first inning operates half of all employees in the second inning and a third in the third inning 200 employees. How many employees work at the factory?
  7. Seats
    divadlo_2 Seats in the sport hall are organized so that each subsequent row has five more seats. First has 10 seats. How many seats are: a) in the eighth row b) in the eighteenth row
  8. 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.
  9. Strange x
    pie For what x is true ??
  10. Sequence
    seq_1 Write the first 7 members of these sequence: a1 = -4 a2 = 10 an+2 = an+1 -1 an
  11. 6 terms
    arithmet_seq Find the first six terms of the sequence. a1 = 7, an = an-1 + 6
  12. Sequence 2
    seq2 Write the first 4 members of an arithmetic sequence a15=-24, d=-2
  13. Sequence 3
    75 Write the first 5 members of an arithmetic sequence: a7=-51, a17=-121.
  14. Simple equation
    axes_1 Solve for x: 3(x + 2) = x - 18
  15. Cakes
    cookies_2 Grandmother baked cakes. Half of its was poppy, quarter with plum jam and 16 cheesecakes. How many cakes she baked in total?