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saikumar

· started a discussion

· 1 Months ago

LENTHY SOLUTION (Question:637178.0)

APPLY SHORTTRICK

Question:

A and B together can complete a task in 20 days. B and C together can complete the same task in 30 days. A and C together can complete the same task in 40 days. What is the ratio of the number of days taken by A when completing the same task alone to the number of days taken by C when completing the same task alone?       

Options:
A) 2 : 5   
B) 2 : 7 
C) 3 : 7
D) 1 : 5 
Solution:
Ans(d)


Knowledge Expert

· commented

· 1 Months ago

Dear student
We will update you with the short tricks soon.

Regards
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