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22 Apr 2020, 07:29
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The rate of P is twice that of Q and the rate of Q is thrice that of R. If P, Q and R together can complete the work in 30 days, then in how many days P alone can do the work?
A. 52 days
B. 50 days
C. 45 days
D. 42 days
E. 30 days
Are You Up For the Challenge: 700 Level Questions
A. 52 days
B. 50 days
C. 45 days
D. 42 days
E. 30 days
Are You Up For the Challenge: 700 Level Questions
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22 Apr 2020, 07:37
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Let the Work done by C is x
Therefore B will be 3x.
And A will be 6x.
Their Ratio is 6:3:1
They do 6+3+1=10 work a day
Work is completed in 30 days.
So they did 30*10=300 work during the Given period.
A could have done work in 300/6=50 days
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Therefore B will be 3x.
And A will be 6x.
Their Ratio is 6:3:1
They do 6+3+1=10 work a day
Work is completed in 30 days.
So they did 30*10=300 work during the Given period.
A could have done work in 300/6=50 days
Posted from my mobile device
22 Apr 2020, 07:50
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Bunuel
The rate of P is twice that of Q and the rate of Q is thrice that of R. If P, Q and R together can complete the work in 30 days, then in how many days P alone can do the work?
A. 52 days
B. 50 days
C. 45 days
D. 42 days
E. 30 days
Are You Up For the Challenge: 700 Level Questions
A. 52 days
B. 50 days
C. 45 days
D. 42 days
E. 30 days
Are You Up For the Challenge: 700 Level Questions
The answer is (B) .
Let the time taken by R is r units/day . Therefore Q=3r and P=6r.
Therefore total work = 30r+90r+180r=300r
Therefore P takes: 300r/6r =50 days
