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x2/y2 + y2/x2 -2 = (x/y) ² + (y/x) ² - 2 x (x/y) x (y/x) = [(x/y) - (y/x)]2 Taking squaring root. [x/y - y/x] .
Ratio of the work done by P, Q and R in one day is 8:5:9 respectively. They all together can complete the work in 40 days. Q and R worked on it for 32 d...
A is capable of finishing a task in 60 days. B requires 40% more time than A to finish the same task. How many days will A and B need to complete 80% of...
A can complete a work in 15 days. B takes 6 days less than A to complete the same work. In how many days can both of them together complete 80% of the w...
A can do a piece of work in 12 days, while B alone can do it in 18 days. They work together for 6 days and the rest of the work is completed by C...
Anjali,' 'Bheem,' and 'Chetna' started a business together with initial investments of Rs. 3,875, Rs. (B + 2700), and Rs. 'B,' respectively. After 16 mo...
‘A’ alone can complete a work in 12 days. ‘B’ alone can complete the same work in 20 days. If ‘A’ and ‘B’ work together for 6 days, then...
Individuals 'A', 'B', and 'C' can complete a certain task independently in 3, 4, and 6 days respectively. If they collaborate on the task, how many days...
'B' is 20% more efficient than 'A.' 'A' began working on a task alone and continued for 8 days, after which 'B' took over and completed the remaining wo...
A contractor hired 40 workers to complete a work in 100 days. After 70 days, it was found that only 2/5th of the work was completed. Find the number of ...
A buffalo alone can plough field ‘A’ in 50 days. A Bull alone can plough the field ‘A’ in 75 days. Find the number of days taken by 1 bulls and ...
