Question

Va rog ajutatima !!! Luni , masina lui Radu a consumat 10 l de banzina. Cati litri de benzina a consumat intr-o saptamana , daca in fiecare zi a consumat cu 3 l mai mult decat in ziua precedenta ?

Answer 1

Luni = A 
Marti = B 
Miecuri = C 
Joi = D
Vineri = E
Sambata = F
Duminica = G

A = |  10  |
B = |  10  | 3 |
C = |  10  | 3 | 3 |
D = |  10  | 3 | 3 | 3 |
E = |  10  | 3 | 3 | 3 | 3 |
F = |  10  | 3 | 3 | 3 | 3 | 3 |
G = |  10  | 3 | 3 | 3 | 3 | 3 | 3 |

A = 10 L
B = 10 + 3 = 13 L 
C = 10 + 3 + 3 = 13 + 3 = 16 L 
D = 10 + 3 + 3 + 3 = 13 + 3 + 3 = 16 + 3 = 19 L 
E = 10 + 3 + 3 + 3 + 3 = 13 + 3 + 3 + 3 = 16 + 3 + 3 = 19 + 3 = 22 L 
F = 10 + 3 + 3 + 3 + 3 + 3 = 13 + 3 + 3 + 3 + 3 = 16 + 3 + 3 + 3 = 19 + 3 + 3 = 22 + 3 = 25
G = 10 + 3 + 3 + 3 + 3 + 3 + 3 = 13 + 3 + 3 + 3 + 3 + 3 = 16 + 3 + 3 + 3 + 3 = 19 + 3 + 3 + 3 = 22 + 3 + 3 = 25 + 3 = 28   L
10 + 13 + 16 + 19 + 22 + 25 + 28 = 23 + 16 + 19 + 22 + 25 + 28 = 39 + 19 + 22 + 25 + 28 = 58 + 22 + 25 + 28 = 80 + 25 + 28 = 105 + 28 = 133 L ( intr-o saptamana )