What is the function of concrete shielding in a nuclear reactor?*
1 point
O
to contain radiation
O
to slow neutrons
O
to cool the reactor
O
to absorb free neutrons

The function of concrete shielding in a nuclear reactor is: to contain radiation.

Explanation:

The reactor core in the nuclear reactor is placed in a steel pressure vessel. The steel vessel is then shielded by a thick layer of concrete. The concrete shielding is done to protect the workers from radiation.

The nuclear power station must be built on hard solid rock as the reactor is heavy in structure. The radiation emitted from the reactor may harm the human being. To avoid this, the concrete shield is made to prevent the emission of radiation.

the old price per ounce is c/4.

the new price per ounce is c/3.6.

the ratio of the old price to the new one is

(c/4)/(c/3.6) = (c/c)×(3.6/4) = 0.9 . . = 9/10 . . "nine tenths" in either form