Carpenters

Carpenters 1 and 2 spend ten days and five days respectively to make one table. If 50 tables were made by the first carpenter and 30 tables were made by the second carpenter, What is the average time spent on the products?

Correct answer:

t =  8.125 d

Step-by-step explanation:

$t={\displaystyle \frac{10\cdot 50+5\cdot 30}{50+30}}={\displaystyle \frac{65}{8}}={\displaystyle \frac{65}{8}}\text{ d}=8.125\text{ d}$

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