Free GMAT GMAT SECTION 2: QUANTITATIVE Exam Braindumps (page: 28)

One gallon of soft drink is made of 40% orange juice and 60% water, how many additional gallons of orange juice must be mixed in to make the orange juice 60% of the soft drink?

  1. 0.5
  2. 1
  3. 1.25
  4. 1.5
  5. 2

Answer(s): A

Explanation:

Use the average formula to solve the following equation:
. X=0.5 gallon.



A merchant gets a 5% discount on each meter of fabric he buys after the first 2,000 meters and a 7% discount on every meter after the next 1,500 meters. The price, before discount, of one meter of fabric is $2, what is the total amount of money the merchant spends on 4,500 meters of fabric?

  1. $8,617
  2. $8,710
  3. $8,810
  4. $8,835
  5. $8,915

Answer(s): B

Explanation:

The price of the first 2,000 meters of fabric is $2 = $4,000. The price of the next 1,500 meters is 95% of $2 = $1.9 = $2,850. The price of the last 1,000 meters is 93% of $2 = $1.86 = $1,860. The total amount spent is: $4,000+$2,850+$1,860=$8,710.



On a summer camp, 25% of the campers paid $120 each, 35% paid $80 each and the rest paid $65 each. What percentage of the total amount paid came from the campers who paid $80?

  1. 18%
  2. 21%
  3. 26%
  4. 33.3%
  5. 37.5%

Answer(s): D

Explanation:

Take 100 campers as an example to work with, 25 paid $120 =$3,000 total, 35 paid $80 = $2,800 total, and 40 (the rest) paid $65 = $2,600. The total amount paid is $8,400. The amount paid by the campers who paid $65 is .



A snail, climbing a 20 feet high wall, climbs up 4 feet on the first day but slides down 2 feet on the second. It climbs 4 feet on the third day and slides down again 2 feet on the fourth day. If this pattern continues, how many days will it take the snail to reach the top of the wall?

  1. 12
  2. 16
  3. 17
  4. 20
  5. 21

Answer(s): C

Explanation:

The snail climbs 2 feet every 2 days, hence, on the 16th day he is 16 feet up the wall. The snail needs only the 17th day to climb 4 feet more and reach the top of the wall.



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