Q565
When the price of an item was reduced by 20%, its sale increased by x%. If there is an increase of 25% in receipt of the revenue, then the value of x is:
A.
54.35
B.
57.75
C.
56.25
AnswerD.
55.35
Answer: Option C
Solution
Answer: Option C
Solution:
\begin{array}{*{20}{c}} {}&{{\text{Price}}}&{{\text{Total}}}&{{\text{Sales}}}&{} \\ {{\text{Old}} \to }&5&{100}&{\frac{{100}}{5}}&{ = 20} \\ {{\text{New}} \to }&4&{125}&{\frac{{125}}{4}}&{ \,\,\,\,\,\,\, = 31.25} \end{array}