A stock trading company charges a commission of $10 per trade plus $0.025 per dollar value of stock traded. If your commission is $140, what was the value of the stock you traded?

Value of the stock traded was $5200.

Step-by-step explanation:

In this question it is given that trading company charges commission of $10 per trade or transaction plus $.025 per dollar value of stock. We have to calculate the value of stock we traded if total commission (commission on trade value + commission on trade) is $140.

Let the value of stock traded was $x.

Then commission on value of the stock = x*.025

Commission on transaction = $10

Total commission = 140 = (.025x + 10)

⇒.025x = 140-10 = 130

x = 130:.025 = $5200

So the value of the stock = $5200