Cognizant Company Category

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Cognizant Other Question

A can finish a job alone in 42 days and C can do the same in 35 days. A and B both work on the project for 5 days, after which B leaves for vacation. A works for a day alone, after which C joins him and they both work together on the project for 8 days, after which A leaves for vacation. C works on the project alone for a day, after which B returns and both B and C together finish the project in 5 days. How long will it take for B to finish the project alone?
a. 35 days
b. 42 days
c. 37.5 days
d. 44 days
A chemical mixture requires 2 chemicals, A and B in the proporion 3:2, this mixture is to be prepared in a tank of capacity 50 litres. Pipe A can pile the tank with chemical A in 50 minutes and pipe B can fill the tank with chemical B in 30 minutes. if both the pipes are opened when the tank is empty, how much time will it take for both the pipes to fill d tank with the proportional mixture?
A) (10,10)
B) (9,9)
C) (12,12)
D) (9,12)
E) (12,9)