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• $450 Tuition Credit & Official CAT Packs FREE December 15, 2018 December 15, 2018 10:00 PM PST 11:00 PM PST Get the complete Official GMAT Exam Pack collection worth$100 with the 3 Month Pack ($299) If 1/2 an investment portfolio was invested in stocks, 1/5 in a mutual  new topic post reply Question banks Downloads My Bookmarks Reviews Important topics Author Message TAGS: Hide Tags Math Expert Joined: 02 Sep 2009 Posts: 51218 If 1/2 an investment portfolio was invested in stocks, 1/5 in a mutual [#permalink] Show Tags 17 Oct 2017, 22:32 00:00 Difficulty: 15% (low) Question Stats: 84% (01:06) correct 16% (01:25) wrong based on 87 sessions HideShow timer Statistics If 1/2 an investment portfolio was invested in stocks, 1/5 in a mutual fund, 1/10 in bonds, and the remaining$25,000 in a savings bond, what was the total amount in the portfolio?

(A) $100,000 (B)$125,000
(C) $150,000 (D)$200,000
(E) $250,000 _________________ Senior SC Moderator Joined: 22 May 2016 Posts: 2210 Re: If 1/2 an investment portfolio was invested in stocks, 1/5 in a mutual [#permalink] Show Tags 18 Oct 2017, 02:35 Bunuel wrote: If 1/2 an investment portfolio was invested in stocks, 1/5 in a mutual fund, 1/10 in bonds, and the remaining$25,000 in a savings bond, what was the total amount in the portfolio?

(A) $100,000 (B)$125,000
(C) $150,000 (D)$200,000
(E) $250,000 $$(\frac{1}{2} + \frac{1}{5} + \frac{1}{10}) = \frac{8}{10}$$ of the portfolio is held in stocks, a mutual fund, and bonds. The remaining$25000, held in a savings bond, equals

$$(1 -\frac{8}{10}) = \frac{2}{10} = \frac{1}{5}$$ of the total amount.

Total amount in the portfolio

$25,000 = $$\frac{1}{5}$$ total$25,000 * 5 = $125,000 Answer B Target Test Prep Representative Status: Founder & CEO Affiliations: Target Test Prep Joined: 14 Oct 2015 Posts: 4295 Location: United States (CA) Re: If 1/2 an investment portfolio was invested in stocks, 1/5 in a mutual [#permalink] Show Tags 22 Oct 2017, 15:53 Bunuel wrote: If 1/2 an investment portfolio was invested in stocks, 1/5 in a mutual fund, 1/10 in bonds, and the remaining$25,000 in a savings bond, what was the total amount in the portfolio?

(A) $100,000 (B)$125,000
(C) $150,000 (D)$200,000
(E) \$250,000

We can let the total investment = n and create the following equation:

(1/2)n + (1/5)n + (1/10)n + 25,000 = n

Multiplying the equation by 10, we have:

5n + 2n + n + 250,000 = 10n

250,000 = 2n

125,000 = n

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Re: If 1/2 an investment portfolio was invested in stocks, 1/5 in a mutual  [#permalink]

Show Tags

23 Oct 2017, 10:19
This was a simple question, the exact question I fear on the GMAT. Tough questions, I seem to do a lot better on. I really am just trying to work on the mechanics of taking clear notes, not skipping steps or making simple errors.

I immediately converted the fractions to have common denominators of 10.

Stocks = 5/10,
mutual funds = 2/10
bonds = 1/10
savings bond = 25,000

-If I sum the fractions, I get 8/10 or 4/5.
-That means the savings bond is 1/5 of the entire portfolio.
=5*25,000=125,000. B is the answer.
_________________

I'd love to hear any feedback or ways to improve my problem solving. I make a lot of silly mistakes. If you've had luck improving on stupid mistakes, I'd love to hear how you did it.

Also, I appreciate any kudos.

Re: If 1/2 an investment portfolio was invested in stocks, 1/5 in a mutual &nbs [#permalink] 23 Oct 2017, 10:19
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