Dylan o ne a ile kwa lenyalong le le neng le na le baeng ba le 100 kwa moletlong wa lenyalo. Moeng mongwe le mongwe o ne a tshotse sejana sa dibisikiti di le 15. Monyalwa o ne a swetsa ka go fa kereke e e bapileng le bone 1/2 ya dibisikiti tsotlhe go e leboga go thusa kwa moletlong wa lenyalo. Fa motho mongwe le mongwe kwa kerekeng eo a ne a fiwa dibisikiti di le 15, go ne go na le batho ba le kae kwa kerekeng eo?

Four children are playing together—Akbar, Alessandro, Helene, and Wilfred. Helene is twice as old as the average age of the group, and the total age of the children is 20. If Akbar is 3 years old and Alessandro is 4 years old, calculate the age of Wilfred.
Fa mongwe le mongwe wa baeng ba le 100 a ne a tshotse sejana sa dibisikiti di le 15, palo yotlhe ya dibisikiti e e neng e tshotswe e ne e le 100*15 = <<100*15=1500>>1500 dibisikiti.
Fa kereke e e bapileng le bone e ne e filwe 1/2 ya dibisikiti tsotlhe, ba ne ba filwe 1/2*1500 = <<1/2*1500=750>>750 dibisikiti.
Fa motho mongwe le mongwe kwa kerekeng eo a ne a filwe dibisikiti di le 15, go ne go na le batho ba le 750/15 = <<750/15=50>>50.
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If the combined age of the children is 20, the average age of the group is 20 years / 4 = <<20/4=5>>5 years.
Helene is twice as old as the group's average age, meaning Helene is 2 * 5 years = <<2*5=10>>10 years old.
The total age of the three children is 10 years + 3 years + 4 years = <<10+3+4=17>>17 years.
Wilfred's age is 20 years - 17 years = <<20-17=3>>3 years.
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