Q301
The monthly incomes of A and B are in ratio 3 : 5 and the ratio of their saving is 2 : 3. If the income of B is equal to three times the saving of A, then what is the ratio of the expenditures of A and B?
A.
5 : 8
B.
8 : 15
AnswerC.
3 : 7
D.
7 : 11
Answer: Option B
Solution
Answer: Option B
Solution:
\begin{array}{*{20}{c}}
{}&{\text{A}}&{}&{\text{B}} \\
{{\text{Income}} \to }&{3x}&:&{5x} \\
{{\text{Saving}} \to }&{2y}&:&{3y}
\end{array}\begin{array}{*{20}{c}} {}&{\,{\text{A}}\,\,\,\,\,{\text{B}}\,} \\ {{\text{Income}} \to }&{18\,\,\,\,30} \\ {{\text{Saving}} \to }&{10\,\,\,\,15} \\ {{\text{Expenditure}} \to }&{\overline {\,\,\,8\,:\,15\,\,} } \end{array}