" Life is not a problem to be solved but a reality to be experienced! "
© Copyright 2013 - 2025 KUDO.TIPS - All rights reserved.
Verified answer
Jawabbanyak ubin = luas aula / luas ubin
n = (21 m x 15 m )/ (30 cm x 30 cm)
n = (2.100 cm x 1.500 cm / (30 cm x 30 cm)
n = 70 x 50
n = 3.500