Răspuns :
a = 4200
b = a * 4 = 4200 * 4 = 16800
c = a + b = 4200 + 16800 = 21000
d = a * 2 = 4200 * 2 = 8400
a + b + c + d = 4200 + 16800 + 21000 + 8400 = 50400
a = 4200
b = a * 4 = 4200 * 4 = 16800
c = a + b = 4200 + 16800 = 21000
d = a * 2 = 4200 * 2 = 8400
a + b + c + d = 4200 + 16800 + 21000 + 8400 = 50400