Q318
A is as efficient as B and C together. Working together A and B can complete a work in 36 days and C alone can complete it in 60 days. A and C work together for 10 days. B alone will complete the remaining work in:
A.
88 Days
B.
84 Days
C.
110 Days
AnswerD.
90 Days
Answer: Option C
Solution
Answer: Option C
Solution:
\begin{array}{*{20}{c}}
{}&A&:&{B + C}&{}&{} \\
{{\text{Efficiency}} \to }&{{1_{ \times 4}}}&:&{{1_{ \times 4}}}& \Rightarrow &{{2_{ \times 4}}} \\
{}&{A + B}&:&C&{}&{} \\
{{\text{Days}} \to }&{36}&:&{60}&{}&{} \\
{{\text{Efficiency}} \to }&5&:&3& \Rightarrow &8 \\
{{\text{Efficiency}} \to }&A&:&B&:&C \\
{}&4&:&1&:&3
\end{array}