Perbandingan Senilai
Jumlah perangko Sawa mula-mula = A buah
A : B : C = 3 : 4 : 7
A + C = B + 420
A + C - B = 420
3x + 7x - 4x = 420
6x = 420
x = 420/6
x = 70
30% A = (3 + 4 + 7)x
3/10 A = 14 × 70
A = 14 × 70 × 10/3
A = 3266,67
A ≈ 3267
Jumlah perangko Sawa mula-mula adalah 3267 buah perangko.
" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2024 KUDO.TIPS - All rights reserved.
Perbandingan Senilai
Jumlah perangko Sawa mula-mula = A buah
A : B : C = 3 : 4 : 7
A + C = B + 420
A + C - B = 420
3x + 7x - 4x = 420
6x = 420
x = 420/6
x = 70
30% A = (3 + 4 + 7)x
3/10 A = 14 × 70
A = 14 × 70 × 10/3
A = 3266,67
A ≈ 3267
Jumlah perangko Sawa mula-mula adalah 3267 buah perangko.