Amit and Anu work together on a job. Anu leaves after working for 4 days. Amit and Anu each working alone can finish the job in 24 days and 30 days respectively. Find the number of days Amit would take to finish the job after Anu leaves.
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Answer:
let total work be 150 units
work done by amit in a day = 10 units
work done by anu in a day = 6 units
work done by both in a day= 16 units
work done by both in 3 days= 48 units
work left= 150-48 = 102 units
time required by anu to complete= 102/6 = 17 days
total time =20 days
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