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Let their present age be 7x and 4x respectively. Product of their ages = 28x² = 2800 => x² = 100 => x = 10 Present age of A = 7x = 70 years Present age of B = 4x = 40 years Ratio of their ages after 5 years = (70+5) : (40+5) = 75:45 = 5:3
If 14 men working 9 hours a day can make 24 quilts in 16 days, then in how many days 20 men working 12 hours per day will make 20 quilts?
A and B together can do a piece of work in 30 days, B and C together can do it in 20 days. A starts the work and works on it for 5 days, then B takes it...
If a group of 20 boys and 10 girls can finish a task in 50 days, and a team of 8 girls alone can complete the same task in 120 days, how long will it ta...
Karan, Arjun and Krunal alone can complete a work in 50, 75 and 60 days respectively. All of them started working together but after 9 days from start K...
P and Q can do a piece of work in 32 and 40 days respectively. They began to work together but P leaves after sometimes and Q completed remaining work i...
'B' and 'C' in a team can complete a piece of work in 25 days and on other hand 'B' alone can do the same work in 40 days. If they started the work in...
Six men collectively earn Rs. 720 as wages over a period of 15 days. If a woman earns Rs. 2 more than a man per day, calculate the total earnings of eig...
15 men can complete a piece of work in 5 days, while 20 women can complete it in 5 days. 8 men start working on the job & after working for 3 days, ...
P alone can finish a piece of work ‘M’ in 6 days while Q takes 3 days to finish it alone. P, Q and R working together can finish the work &l...
