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Let the present ages of P and Q be 7x and 4x years respectively. According to the question, => 7x + 13 = 2.25(4x – 4) => 7x + 13 = 9x - 9 => 2x = 22 => x = 11 Required age = 7x – 2 = 75 years
A can complete a job in 20 hours. B alone can complete the same job in 15 hrs. A work for 9 hrs and then the remaining job is completed by B. How many h...
P and Q can do a work in 10 days. Q and R can do it in 12 days. All three together can finish in 8 days. In how many days can P and R can complete the w...
A' can finish a job in 24 days, while 'B' is 25% less efficient than 'A.' If they take turns working, beginning with 'A,' how many days will it take for...
With P starting the work, working on alternate days, P and Q can finish a work in 17 days. If Q works on the first day and Q and P work alternately, the...
A can fabricate a divider in 15 days , while B alone can assemble it in 25 days, If they construct it together and get an installment of Rs 7000, then f...
John does ½ piece of work in 3 hours, Joe does ¼ of the remaining work in 1 hour and George finishes remaining work in 5 hours. How long w...
A 210 litres mixture contains only water and phenyl in the ratio 3:2, respectively. If 60 litres of this mixture is replaced with 100 litres of alcohol,...
33 men can complete 3/5 part of a work in 8 days working 9 hours a day. How many women can complete rest of the work if they work for 6 hours a day for ...
A work can be completed by ‘A’ and ‘B’, alone in 7 days and 14 days, respectively. Find the number of days taken by ‘C’ to complete the same...
‘A’ alone can complete a work in 15 days. ‘B’ alone can complete the same work in 20 days. If ‘A’ and ‘B’ work together for 5 days, then...
