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  5. GMAT SECTION 2: QUANTITATIVE

Free GMAT SECTION 2: QUANTITATIVE Exam Braindumps (page: 14)

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Celeste worked for h hours each day for d consecutive days. If she earns $9.50 per hour, what is the total amount she earned?

  1. 9.50/d + h
  2. 9.50 + d + h
  3. 9.50 + dh
  4. 9.50h + d
  5. 9.50dh

Answer(s): E

Explanation:

Suppose Celeste worked for 8 hours each day for 5 consecutive days. Her total pay would be found by finding her total hours (8 × 5 = 40) and then multiplying 40 by her pay per hour ($9.50). Since you are only multiplying to solve the problem, the expression is 9.50 × d × h or 9.50dh.



A certain jacket was marked down 20% the first week and another 20% the next week. What percent of the regular price was the final cost of the jacket after the two markdowns?

  1. 30%
  2. 36%
  3. 40%
  4. 60%
  5. 64%

Answer(s): E

Explanation:

To make this problem easier, assume the initial cost of the jacket was $100. The first markdown of 20% would save you $20, bringing the cost of the jacket to $80. For the second markdown, you should be finding 20% of
$80, the new cost of the jacket. 20% of 80 = 0.20 × 80 = 16. If you save $16 the second time, the final cost of the jacket is 80 – 16 = $64. Since the initial cost was $100, $64 is 64% of this price.



If 20 typists can type 48 letters in 20 minutes, then how many letters will 30 typists working at the same rate complete in 1 hour?

  1. 63
  2. 72
  3. 144
  4. 216
  5. 400

Answer(s): D

Explanation:

First calculate the number of letters completed by 30 typists in 20 minutes. Let x = the number of letters typed by 30 typists and set up the proportion typists/letters = 20/48 = 30/x. Cross-multiply to get 20x = 1,440. Divide both sides by 20 and get x = 72. Since 20 minutes is one-third of an hour, multiply 72 × 3 = 216 to get the total letters for one hour.



What is the final balance of a bank account after two years if the starting balance is $1,000 at an annual rate of 5%, using simple interest? Assume no other money was withdrawn or deposited.

  1. $50
  2. $100
  3. $1,050
  4. $1,100
  5. $1,150

Answer(s): D

Explanation:

This problem can be solved by using the simple interest formula: interest = principal × rate × time. Remember to change the interest rate to a decimal before using it in the formula. I = (1,000) (0.05) (2) = $100. Since $100 was made in interest, the total in the bank account is $1,000 + $100 = $1,100.






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