Building

At the building, we divided 240 boards into two piles in a 5: 3 ratio. How many were fewer boards in the lower pile?

Correct answer:

x =  60

Step-by-step explanation:

$x=240\cdot {\displaystyle \frac{5}{5+3}}-240\cdot {\displaystyle \frac{3}{5+3}}=60$

Try another example

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