Question : A can do 20% of a job in 7 days and B can do 25% of the job in 7 days if they worked alone. How much of the job (in percentage) can they complete in 7 days if they worked together?
Option 1: 38%
Option 2: 52%
Option 3: 56%
Option 4: 45%
Answer (1)
24th Jan, 2024
Correct Answer: 45%
Solution :
Given:
A can do 20% of a job in 7 days.
B can do 25% of the job in 7 days.
So, in 7 days, both A and B together will finish $45$% of the work.
Hence, the correct answer is 45%.
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