sohit, shailesh and rakesh can mow a lawn together in = 4 hrs sohit takes alone 10 hrs shailesh takes alone 12 hrs. how much time does rakesh take to mow a lawn if he work by himself ?
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sohit, shailesh and rakesh can mow a lawn together in = 4 hrs sohit takes alone 10 hrs shailesh takes alone 12 hrs. how much time does rakesh take to mow a lawn if he work by himself ?
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