Question

determinati numarul necunoscut :

(a : 5 +105) : 100=3

Answer 1

( a : 5 + 105 ) : 100 = 3
a : 5 + 105 = 3 x 100
a : 5 + 105 = 300
a : 5 = 300 - 105
a : 5 = 195
a = 195 x 5
a = 975

Answer 2

(a:5+105):100=3.(a:5+105)=3*100.(a:5+105)=300.(a:5)=300-105.(a:5)=195.a=5*195.PROBA:975:5=195+105=300:100=3