Ada yang bisa bantu…. thq sebelumnya
Jawaban Terkonfirmasi
Total pupils = x
Ball games = ¹/₂.x
Hide-and-seek = ¹/₅.(1 – ¹/₂.x) = ¹/₁₀.x
Tag = 1 – ¹/₂.x – ¹/₁₀.x = ²/₅.x
Relation between tag and hide-and-seek
²/₅.x – 12 = ¹/₁₀.x
²/₅.x – ¹/₁₀.x = 12
³/₁₀.x = 12
x = (¹⁰/₃)(12)
x = 40
So, pupils played tag = (²/₅)(40) = 16