If the excavation of earth is done manually then it costs Rs. 10 per cum. A machine can excavate at
a fixed cost of Rs. 4000 plus a variable cost of Rs. 2 per cum. The quantity of earth for which the
cost of excavation by machine will be equal to the cost of manual excavation is
(A) 500 cum
(B) 1000 cum
(C) 1500 cum
(D) 2000 cum

1 Answer

Answer :

(A) 500 cum

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