An ideal gas is taken around the cycle $ABCA$ as shown in the $P-V $ diagram. The net work done by the gas during the cycle is equal to
A$12\,{P_1}{V_1}$
B$6\,{P_1}{V_1}$
C$3\,{P_1}{V_1}$
D$2{P_1}{V_1}$
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D$2{P_1}{V_1}$
d (d) Work done $ = \frac{1}{2} \times 2{P_1} \times 2{V_1} = 2{P_1}{V_1}$
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