Question

Afla numerele a,b,c,d stiind ca: a×b=300 b=c×5 c=d-21 d=e:6 e:9=18​

Answer 1

Răspuns:

ab=300=>a=300:30=>a=10

b=5c=>b=5×6=>b=30

c=d-21=>c=27-21=>c=6

d=e/6=>d=162:6=>d=27

e/9=18=>e=9×18=>e=162

Answer 2

$\it e:9=18 \Rightarrow e=18\cdot9 \Rightarrow e=162\\ \\ d=e:6=162:6=27\\ \\ c=d-21=27-21=6\\ \\ b=5c=5\cdot6=30$