Question

daca micsoram de 4 ori a cincea parte dintr-un numar rezultatul il marim de 10 ori si-l micsoram cu 10 obtinem 60. determinati numarul

Answer 1

[(X/5:4)×10]-10=60

(X/5:4)×10=60+10

X/5:4=70:10

X/5•1/4=7

X/20=7

X=20×7

X=140

Answer 2

a : 5 : 4 x 10 - 10 =60

a : 5 : 4 x 10=60 +10

a : 5 : 4 x 10 = 70

a : 5 : 4= 70 : 10

a : 5 :4= 7

a : 5 =7 x 4

a : 5 =28

a = 28 x 5

a =140