Question

(PUC) Se 2n=15 e 2p=20, então o valor de 2n-p+3 é:

Answer 1

Se 2n=15, n=15/2.
Se 2p=20, p=20/2=10.
2(15/2) - 10 + 3 = 15 - 10 + 3 = 5 + 3 = 8.