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Let the present age of boy be ‘x’ years. 125% of age of boy 8 years before = 75% of age of boy after 8 years => (125/100) × (x - 8) = (75/100) × (x + 8) => 125(x - 8) = 75(x + 8) => 125x - 1000 = 75x + 600 => 50x = 1600 => x = 32 yrs
Ram can finish a task alone in 45 days, whereas Ram and Rahul working together can complete the same task in 12 days. If Rahul works on the task alone f...
A isfive times as efficient as B and can finish a piece of work in 36 days less than B. B can finish this work in how many days?
A group of 'x' men can finish a job in 46 days. If 8 additional men had joined the group, they could have completed the same job 16 days earlier. Assumi...
‘A’ can complete a work in 18 days and is 10% more efficient than ‘B’. ‘A’ and ‘B’ start the work together, but ‘A’ leaves after 15 ...
Ten women working nine hours a day complete a particular job in 20 days. If an additional 20 women were employed and they all worked 12 hours a day, how...
Aman, Bishnu, and Chintu can each complete 20%, 25%, and 60% of the work in 4 days, 9 days, and 27 days, respectively. If all thr...
A, B, and C can complete a job in 15, 20, and 30 days, respectively. They start the work together but after 3 days, A leaves. Then, B works alone for 5...
‘A’ alone can complete a work in 10 days. ‘B’ alone can complete the same work in 20 days. If ‘A’ and ‘B’ work together for 3 days, then...
'A' alone can finish a job in 12 days. If 'A' is twice as efficient as 'B' who is 20% as efficient as 'C', then find the time taken to finish the job if...
