Ram,John and Raheem can finished a work in 20 days.If Ram and john work together they finished in 40 days,how many days will Raheem take to complete it?
sankar007:
1/20-1/40
is answer
lcm karo
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1/20-1/40=1/40
means for Raheem is for 40 days
is this right
it is like x+y+z=1/40. x+y=1/20. 1/20+z=1/40.
sry x+y=1/40. 1/40+z=1/20. z=1/20-1/40
what's happened bro reply pls
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