The table above shows the number of hours spent on the phone by the 50

Question

https://gmatclub.com/forum/download/file.php?mode=view&id=52473  
The table above shows the number of hours spent on the phone by the 50 employees on a certain day at the call center for RPT Corporation.

Use the drop-down menus to fill in the blanks in each of the following statements based on the information given by the graph.

3. If the employees who spent 2 hours on the phone increased their total hours spent on the phone by 50%, then the total hours spent on the phone by these employees would be  GRAPH_1_PLACEHOLDER .

4. Please choose this drop-down as a Graphs question needs to have 2  GRAPH_2_PLACEHOLDER .

The First two questions based on this stem can be found here.

IshtarthUmesh · Answer

Can anyone explain how it is 6 hours ?

chetan2u · Answer

We are looking at the employees spending two hours on phone.
In the bar above 2, we have two employees. Thus two employees spend two hours on phone.

Now these people increase time by 50%, so 2 hours becomes 3 hours, and total hours spent by the two employees combined is 2*3 or 6 hour.

IshtarthUmesh  Hope it is clear

7Amulya · Answer

Hi  chetan2u ,

I couldn't understand. How the total hour spent is 6 hrs and not 3 hrs?
I'm confused about this. Requesting if you could elaborate please

Ro24 · Answer

X-Axis represents number of employees and y-axis represents total number of hours spent on the phone. 
So x-axis - 2 i.e. 2 employees spent 2 hours - y-axis i.e. in total 4 hours

sompant_98 · Answer

This is because the graph shows two people who spend two hours on the phone. If we increase the hours spent on phone by 50% then we get 3 hours which is nothing but 2hours+0.5*2 hours= 3 hours. 
This is for an individual. If you want the amount of time spent by two people on the phone then you multiply 2*3 and you get 6 hrs as an answer.

Armaan209 · Answer

Two employess spend 2 hours on their phone, So, Total time spend = 2+2 = 4
Now ncrease this by 50% ie 2. Now total would be 4(original) + 2 (increased)

Hope its clear 
 bb

SeptemberSakshi · Answer

AnushkaTanwar · Answer

It is for 2 employees not for 1 employee, i made the same mistake.
1 employee= 3 hrs
2 employee= 6 hrs

Arkadip045 · Answer

yes, you are right. But the Questions asks total hours spent on phone. so, (2 person * 3 hours each)= 6 Hours.

Varshakash · Answer

The question says total hours by " these employees " it means it's asking us to calculate hours in total by all the employees using phone for 2 hours. From the graph we can see that the total no. employees using phone for 2 hours is two and increase in usage timings of each employee (50% of 2 hours) is 1 hour so we can conclude that now each employee in that category is using phone for 3 hours. Hence the total no. of hours would be No. of employees in that category x 3 hours i.e. 2x3=6. Hope this helps

The table above shows the number of hours spent on the phone by the 50

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