Question
P alone can finish a piece of work ‘M’ in 9 days
while Q takes 3 days to finish it alone. P, Q and R working together can finish the work ‘N’ which is 12 times of work ‘M’ in 9 days. How long will R take to finish work ‘N’, when working alone?Solution
Let the work ‘M’ = 9 units (LCM of 9 and 3) Efficiency of P = 9/9 = 1 units Efficiency of Q = 9/3 = 3 units Efficiency of P, Q and R = (9 × 12)/9 = 12 units per day Efficiency of R = 12 – (1 + 3) = 8 units per day Time taken by R to finish work ‘N’ = 108/8 = 13.5 days
Select the option figure that can replace the question mark (?) in the following series.
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Select the figure that will replace the question mark (?) in the following figure series.
Select the figure which will come next in the following figure series.
Select the figure from among the given options that can replace the question mark (?) in the following series.
Select the figure that will come next in the following series.
Select the figure which will come next in the following figure series.
Select the figure from among the given options that can replace the question mark (?) in the following series.
Select the figure that can replace the question mark (?) in the following series.
Select the figure from among the given options that can replace the question mark (?) in the following series.
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