Current location - Information Consultation Platform - Information Technology Consulting - Lingling's family is going to decorate the new house. If both parties cooperate, it will take 6 weeks to complete, and the decoration cost is 52,000 yuan. If Party A does it alone,

Lingling's family is going to decorate the new house. If both parties cooperate, it will take 6 weeks to complete, and the decoration cost is 52,000 yuan. If Party A does it alone,

1. Suppose it takes X weeks for A to do it alone and Y weeks for B to do it alone.

The formula1:(1/x+1/y) =1/6;

Equation 2: 4/x+9/y = 6 (1/x+1/y);

From formula 2: 4Y+9X=6X+6Y, 3X = 2Y from formula 1, X = 10, y =15; As far as time is concerned, choosing a company is cost-effective;

2. Suppose Party A needs X million yuan to do it alone, and Party B needs Y million yuan to do it alone.

Equation 3: (6/10) x+(6/15) y = 5.218x+12y =156.

Equation 4: (4/10) x+(9/15) y = 4.812x+18y =14418x+27y = 2.

As far as economy is concerned, you must choose company B.

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