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Only two persons live below the floor on which H lives. Only one person lives between H and X. X does not live on the lowermost floor. Using the above information we can place X and H on the floor number 5 and 3 respectively. 
U lives on an odd numbered floor but not on floor number 7. Only two persons live between U and Y. Y does not live on the topmost floor. We can use the above information to place U and Y in the table as shown below. 
B lives immediately below Z. Neither B nor C lives on floor number 6. After using the above information we can place B, Z and C in the table and here we can see that there is only spot left on the table which will be filled by last remaining member i.e. D. 
Working alone, B can complete the work in 30 days. C is twice as efficient as B and A takes 3 days more than it takes C to complete the work. Working to...
'B' can complete a task in 15 days, and when 'A' and 'B' collaborate, they can finish the same task in 8 days. 'A' initiated the work alone and worked f...
‘M’ is 60% more efficient than ‘N’. ‘N’ started the work alone and worked for 24 days and after that ‘N’ is replaced by ‘M’. If the ...
‘A’ can complete a work in 15 days and is 50% more efficient than ‘B’. ‘A’ and ‘B’ start working together and ‘A’ leaves after 8 day...
A can finish a work in 25 days and B can complete the same work in 10 days. B worked for 5 days and left the job. In how many days can A alone finish th...
A and B can complete a task in 63 days and 42 days, respectively. If C is 40% more efficient than the combined efficiency of A and B, how much time will...
10 masons can build a wall in 15 days by working 8 hours per day. How many masons are required to build the wall in 10 days by working 12 hours per day?
A and B together can complete a piece of work in 48 days while B and C together can complete the same work in 58 days. All of three together can complet...
A’ and ‘B’ together can complete a work in 20 days while ‘A’ takes 25 days to complete the same work alone. If ‘C’ is 60% more efficient t...
