a) 250 * 1/100 = 2,50 ml se evapora
250 - 2,50 = 247,50 ml apa raman pt. ceai
b) 10 g ghimbir
10 g miere
10 * 1/5 = 2g cuisoare
2 * 1/2 = 1 g boabe de piper
c) 10 * 7 = 70 g ghimbir
10 * 7 = 70 g miere
2 * 7 = 14 g cuisoare
1 * 7 = 7 g boabe de piper
5.
V = l³ = 8³ = 512 cm³ volumul cutiei patrate
8 dm = 80 cm
1,2 m = 1200 cm
V = 1200 * 80 * 80 = 7680000 cm³ are cutia paralelipipedica
7680000 : 512 = 15000 cutiute
