100% / 15% = 40 / x
100 / 15 = 40 / x
20 / 3 = 40 / x
x = 40 × 3 / 20
x = 6 siswa
100% / 25% = 40 / y
4 / 1 = 40 / y
y = 40 × 1 / 4
y = 10 Siswa
= 10 - 6
= 4 Siswa
(25% - 15%) / 100% = x / 40
10% / 100% = x / 40
1 / 10 = x / 40
x = 40 × 1 / 4
x = 4 Siswa
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Selisih antara Siswa Penggemar Tenis dan Catur (Cara 1)
Tenis
100% / 15% = 40 / x
100 / 15 = 40 / x
20 / 3 = 40 / x
x = 40 × 3 / 20
x = 6 siswa
Catur
100% / 25% = 40 / y
4 / 1 = 40 / y
y = 40 × 1 / 4
y = 10 Siswa
Selisih Catur dan Tenis
= 10 - 6
= 4 Siswa
Selisih antara Siswa Penggemar Tenis dan Catur (Cara 2)
Selisih Tenis dan Catur
(25% - 15%) / 100% = x / 40
10% / 100% = x / 40
1 / 10 = x / 40
x = 40 × 1 / 4
x = 4 Siswa