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nonagerian

· started a discussion

· 1 Months ago

12311 (Question: 246622.0 )

solution easy way me dalo bhai.yeh wala samajhna bada mushki hai

Question:
A and B can do a work in 15 days. If A alone works on it for 3.5 days and B completes remaining work in 26.5 days then A can alone complete the whole work in how many days?
Options:
A) 20 days
B) 25 days 
C) 30 days 
D) 40 days 
Solution:

Ans: (c)


Aditya Kumar

· commented

· 1 Months ago

Let A and B be efficiency of A and B
(3.5A + 26.5B)=15(A+B)
= A=B
There fore A nd B can individually do the work in 30 days

BIJUMON M

· commented

· 1 Months ago

only A worked for 3.5 days. Not A&B

BIJUMON M

· commented

· 1 Months ago

wrong question analysis
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