Question

Efficiency of A is 25% more then B and B takes 25 days to complete a piece of work. A started a work alone and then B joined her 5 days before actual completion of the work. For how many days A worked alone?
A. 9
B. 11
C. 10
D. 25
E. 12​

Answer 1

Answer:

10

Step-by-step explanation:

25 - 5 =20

20/2 = 10

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Answer 2

Answer:

B 25 days .................