doubts here,,please clarify : GMAT Problem Solving (PS)
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Manager
Status: exam is close ... dont know if i ll hit that number
Joined: 06 Jun 2011
Posts: 206
Location: India
GMAT Date: 10-09-2012
GPA: 3.2
Followers: 2

Kudos [?]: 22 [0], given: 1

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31 Aug 2011, 07:14
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28. Harris invested $45,000 in two different ventures, a car-cleaning machine and a video mat. The yearly return on the video mat was 12% and the yearly return on the car-cleaning machine was 8%. If the total return was$4,000, how much did Harris
invest in the video mat?
$8,000.$10,000.
$14,000.$22,000.
$35,000. 15. Roy is now 4 years older than Erik and half of that amount older than Iris. If in 2 years, Roy will be twice as old as Erik, then in 2 years what would be Erik’s age multiplied by Iris’s age? (a) 8 (b) 28 (c) 48 (d) 50 (e) 52 16. A cruise ship traveled for 3 hours. In the first hour, the ship sailed at a speed of 25 Km/h, which was 25% faster than the speed in the third hour. In the middle hour the ship sailed at the average speed of the first and third hours. What was the total istance of the ship during the 3 hours of sailing? 65. 66.5. 67.5. 70. 72.5. 15. A train traveled for three hours. In the first hour the train traveled 86 miles, which was 25% farther than it traveled in the first hour. In the third hour the train traveled at a speed of 120 miles per hour for 20 minutes. What is the total distance that the train traveled? 190.6. 194.8. 198.2. 204.5. 212.8. _________________ just one more month for exam... Math Forum Moderator Joined: 20 Dec 2010 Posts: 2021 Followers: 161 Kudos [?]: 1708 [0], given: 376 Re: doubts here,,please clarify [#permalink] ### Show Tags 31 Aug 2011, 07:54 mohan514 wrote: 28. Harris invested$45,000 in two different ventures, a car-cleaning machine and a
video mat. The yearly return on the video mat was 12% and the yearly return on the
car-cleaning machine was 8%. If the total return was $4,000, how much did Harris invest in the video mat?$8,000.
$10,000.$14,000.
$22,000.$35,000.

15. Roy is now 4 years older than Erik and half of that amount older than Iris. If in 2
years, Roy will be twice as old as Erik, then in 2 years what would be Erik’s age
multiplied by Iris’s age?
(a) 8
(b) 28
(c) 48
(d) 50
(e) 52

16. A cruise ship traveled for 3 hours. In the first hour, the ship sailed at a speed of 25
Km/h, which was 25% faster than the speed in the third hour. In the middle hour the
ship sailed at the average speed of the first and third hours. What was the total istance
of the ship during the 3 hours of sailing?
65.
66.5.
67.5.
70.
72.5.
15. A train traveled for three hours. In the first hour the train traveled 86 miles, which
was 25% farther than it traveled in the first hour. In the third hour the train traveled at
a speed of 120 miles per hour for 20 minutes. What is the total distance that the train
traveled?
190.6.
194.8.
198.2.
204.5.
212.8.

mohan514:
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15. Roy is now 4 years older than Erik and half of that amount older than Iris. If in 2
years, Roy will be twice as old as Erik, then in 2 years what would be Erik’s age
multiplied by Iris’s age?
(a) 8
(b) 28
(c) 48
(d) 50
(e) 52

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