12. A fish weighs the total of $2 \mathrm{~kg}$ plus a third of its own weight. What is the weight of the fish in $\mathrm{kg}$ ?
A $2 \frac{1}{3}$
B 3
C 4
D 6
E 8
12. B The question tells us that $2 \mathrm{~kg}$ is two-thirds of the weight of the fish. So onethird of its weight is $1 \mathrm{~kg}$ and therefore its weight is $3 \mathrm{~kg}$.