A) loss of 20%
B) loss of 25%
C) gain of 20%
D) gain of 25%
Correct Answer: D
Solution :
Let C.P. of 1 item = Re. 1 \[\therefore \]C.P. of 20 items \[=Rs.\text{ }20\] By hypothesis, S.P. of 16 items \[=Rs.\text{ }20\] \[\therefore \]S.P. of 20 items \[=Rs.\text{ }\frac{20\times 20}{16}=Rs.25\] \[\therefore \] Gain\[~=Rs.\text{ }25-Rs.\text{ }20=Rs.\text{ }5\] Hence, Gain \[%=\frac{5}{20}\times 100=25%\]
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