Question
βAβ can complete a work in 12 days and is 33.33%
more efficient than βBβ. βAβ and βBβ start the work together, but βAβ leaves after 6 days. The remaining work is completed by βBβ alone in βxβ days. Find the value of βxβ.Solution
Given: A completes the work in 12 days. A is 33.33% more efficient than B, meaning B's rate is 1/16 (since A's rate is 1/12). A and B's combined rate 
Work done together in 6 days 
Remaining Work =Β Β
Work Done by B Alone Bβs rate = 1/16. Time taken by B to finish the remaining work: 
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