In a production lot, 20% of widgets are blue and the rest are black. One-half of widgets are made of silver and the rest

[BTGmoderatorDC]

In a production lot, 20% of widgets are blue and the rest are black. One-half of widgets are made of silver and the rest are made of gold. If 10% of the widgets are silver and blue, and 80 are black and gold, how many total widgets are there?

A. 140
B. 160
C. 180
D. 200
E. 250


OA D

Source: Veritas Prep

[swerve]

In a production lot, 20% of widgets are blue and the rest are black. One-half of widgets are made of silver and the rest are made of gold. If 10% of the widgets are silver and blue, and 80 are black and gold, how many total widgets are there?

A. 140
B. 160
C. 180
D. 200
E. 250


OA D

Source: Veritas Prep

\(\dfrac{x}{5} - \dfrac{x}{10} = \dfrac{x}{2} - 80\)
\(x = 200\)

Therefore, D