Question

ma gandesc la un nr .il maresc de10 ori apoi de 20 de ori.il micsorez de 40 de ori si obtin 5.care este nr.

Answer 1

a x 10 x 20 : 40 = 5
a x 10 x 20 = 5 x 40
a x 10 x 20 = 200
a x 10 = 200 : 20
a x 10 = 10
a = 10 : 10
a = 1

Answer 2

ax10x20:40=5
ax10x20=5x40
ax10x20=200
ax10=200:20
ax10=10
a=10:10
a=1