Suppose that 75% of all investors invest in traditional

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QUESTION:

Suppose that 75% of all investors invest in traditional annuities and 45% of them invest in the stock market. If 85% invest in the stock market and/or traditional annuities, what percentage invest in both?

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QUESTION:

Suppose that 75% of all investors invest in traditional annuities and 45% of them invest in the stock market. If 85% invest in the stock market and/or traditional annuities, what percentage invest in both?

ANSWER:

Step 1 of 2

Suppose that 75% of all investors invest in traditional annuities and 45% of them invest in the stock market. If 85% invest in the stock market or traditional annuities.

Let A be the event that the investors invest in traditional annuities and B be the event that the investors invest in stock markets.

Then,

We have to find .

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