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Abhishek

· started a discussion

· 1 Months ago

ANSWER CAN BE 3 (Question: 86845.0 )

LET A DO WORK FOR X DAYS ALONE .
X/15+(15/2-X)/(20/3)=1
ANSWER WILL CHANGE

Question:
A alone can reap a certain field in 15 days and B in 12 days. If A begins alone and after a certain interval B joins him the field is reaped in 7\(\cfrac{1}{2}\) days. How long did A and B work together?
Options:
A) 3 days
B) 6 days
C) 7 days
D) 12 days
Solution:

Ans: (b) 


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