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Let Sonu’s present age be x years. ∴ Ram’s present age is (x + 7) years From II (x + 7)/x = 5/4 ∴ 4 x + 28 = 5 x x = 28 Hence, Sonu’s age 10 years ago = 28 – 10 = 18 years Thus, From I and From II, we can find the age of Sonu.
‘A’ and ‘B’ can do a piece of work in 12 days and 20 days, respectively. They started working together but ‘A’ left after 6 days. Find the t...
Aamir is twice as efficient a worker as Bender and together they can complete a work in 42 days. In how many days will Aamir alone complete the same work?
‘A’ and ‘B’ can do a piece of work in 12 days and 24 days, respectively. They started working together but ‘A’ left after 4 days. Find the t...
. If 3 goats or 5 sheep can graze a field in 56 days, then in how many days can 6 goats and 10 sheep graze the same field?
Efficiency of A is 25% more than B and B takes 30 days to complete a piece of work. A started the work alone and then B joined him 4 days before actual ...
A’ and ‘B’ together can complete a work in 10 days while ‘A’ takes 30 days to complete the same work alone. If ‘C’ is 50% more efficient t...
Karan, Arjun and Krunal alone can complete a work in 30, 45 and 36 days respectively. All of them started working together but after 3 days from start K...
The team of A B and C was supposed to complete a piece of work. Working alone, A could have completed the same work in 190 hours. B could have completed...
X can do a piece of work in 25 days. He worked at it for 5 days and then Y finished it in 24 days. In how many days can X and Y together finish the work?
