Question
A work can be completed by ‘A’ and ‘B’, alone in
20 days and 10 days, respectively. Find the number of days taken by ‘C’ to complete the same work alone if ‘A’, ‘B’ and ‘C’ together can complete the whole work in 4 days.Solution
Let total work = 20 units (LCM of 20 and 10) Efficiency of ‘A’ = (20/20) = 1 units/day Efficiency of ‘B’ = (20/10) = 2 units/day Combined efficiency of ‘A’, ‘B’ and ‘C’ = (20/4) = 5 units/day Efficiency of ‘C’ = 5 – (1 + 2) = 2 units/day Required time taken = (20/2) = 10 days
Who lives two floors above the floor on which S lives?
The number of persons sit between A and B is same as the number of persons sit between Q and ____?
How many persons were born between J and O?
How many persons stay between R and S?
Who among the following is wife of Prashant?
Priya is older than her cousin Manvi, Manvi's brother Bhaskar is older than Priya. When Manvi and Bhaskar are visiting Priya, all three like to play a g...
Which of the following statements is correct?
Identify the figure that completes the pattern.
On which floor does the person live who likes Shreya ghoshal?
Select the option that is related to the third term in the same way as the second term is related to the first term.
DFB : GHC :: LNJ : ?
Relevant for Exams:
