x, y and z are the positive integers such that x y z. Which of the following is closest to the product xyz?xy(z-1)(x-1)yz(x-y)xyx(y+1)zPlease describe the solution in d...

20 men can do a work in c/2 days & 30 women can do the same work in c/3 days then how many days will take to complete the work when 20 men &30wmen work togethera)5c/6b)c/...