A segment 15 meters long can be divided into how many

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BTGmoderatorLU: Moderator; Posts: 2650; Joined: Sun Oct 15, 2017 1:50 pmFollowed by: 6 members

by BTGmoderatorLU » Mon Jun 04, 2018 1:31 pm

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A segment 15 meters long can be divided into how many segments 30 centimeters long? (1 meter = 100 centimeters)

A. 50
B. 20
C. 5
D. 2
E. 1/2

The OA is A.

Segment length = 15 m = 1500 cm
length of smaller segments (on division ) = 30 cm

S, total number of smaller segments = 1500/30 = 50

Please, can someone explain another way to solve this PS question? Thanks in advance!

Source: Beat The GMAT — Problem Solving | Mon Jun 04, 2018 1:31 pm

Vincen: Legendary Member; Posts: 2898; Joined: Thu Sep 07, 2017 2:49 pmFollowed by: 5 members; Thanked: 6 times

by Vincen » Mon Jun 04, 2018 11:54 pm

BTGmoderatorLU wrote:A segment 15 meters long can be divided into how many segments 30 centimeters long? (1 meter = 100 centimeters)

A. 50
B. 20
C. 5
D. 2
E. 1/2

The OA is A.

Segment length = 15 m = 1500 cm
length of smaller segments (on division ) = 30 cm

S, total number of smaller segments = 1500/30 = 50

Please, can someone explain another way to solve this PS question? Thanks in advance!

Hi BTGmoderatorLU.

You also can write 30cm as 0.3 m.

Then, we have to divide the total length of the segment by 0.3m, that is to say $$\frac{15m}{0.3m}=\frac{15}{3\cdot10^{-1}}=\frac{5}{10^{-1}}=5\cdot10=50\ \ \ segments.$$ Hence, the correct answer is the option [spoiler]A=50[/spoiler].

I hope it can help you.

Regards.

GMAT/MBA Expert

Scott@TargetTestPrep: GMAT Instructor; Posts: 8246; Joined: Sat Apr 25, 2015 10:56 amFollowed by: 29 members; Location: Los Angeles, CA; Thanked: 43 times

by Scott@TargetTestPrep » Wed Jun 06, 2018 4:02 pm

BTGmoderatorLU wrote:A segment 15 meters long can be divided into how many segments 30 centimeters long? (1 meter = 100 centimeters)

A. 50
B. 20
C. 5
D. 2
E. 1/2

Since 15 m = 1500 cm, then a 15-meter segment can be divided into 1500/30 = 50 30-centimeter segments.

Answer: A

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