Question

Quanto vale 45% de 45 somado a 30% de 30?

Answer 1

45% de 45

45 ------ 100%

x --------- 45%

x . 100 = 45 . 45

100x = 2025

x = 2025 / 100

x = 20,25

30% de 30

30 ------ 100%

x --------- 30%

x . 100 = 30 . 30

100x = 900

x = 900 / 100

x = 9

45% de 45 somado a 30% de 30

20,25 + 9 = 29,25