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Ajax buys 20 shares of stock at \$\\$20\$ per share. The shares increase in value by \$20\%\$. He then sells 10 shares. After the shares decrease in value by \$15\%\$, he buys another 20 shares. The shares then all increase by \$60\%\$. Determine the total dollar value of the 30 shares that Ajax now owns.

Jan 1, 2022

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20 shares at \$20

The cost of 20 shares = 20 * \$20 = \$400

Increase in by 20% = 400 + (20% * 400) = \$480

Cost per share = 480/20 = \$24

Sells to shares = \$20 * 10 = \$240

Cost per shares after decrease by 10% = 24 - (10% * 24) = \$21.60

Buys 20 and remaining shares = 20 + 10 = 30 shares

Cost of 30 shares = 21 * 60 * 30 = \$648

Increased by 50% = 648 + (50% * 648) = \$972

The total value of the 30 shares that Ajax own is \$972.

Jan 4, 2022
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