GRE Prep Club Daily Prep
Thank you for using the timer - this advanced tool can estimate your performance and suggest more practice questions. We have subscribed you to Daily Prep Questions via email.
Customized
for You
Track
Your Progress
Practice
Pays
Not interested in getting valuable practice questions and articles delivered to your email? No problem, unsubscribe here.
If each of the small squares in the figure above has area 1,
[#permalink]
01 Aug 2018, 10:33
01 Aug 2018, 10:33
Expert Reply
1
Bookmarks
00:00
Question Stats:
77% (01:00) correct
22% (00:38) wrong based on 18 sessions
Hide Show timer Statistics
Attachment:
square.jpg [ 19.12 KiB | Viewed 2698 times ]
If each of the small squares in the figure above has area 1, what is the area of the shaded region?
A. 50
B. 55
C. 59
D. 60
E. 61
Re: If each of the small squares in the figure above has area 1,
[#permalink]
11 Aug 2018, 13:16
11 Aug 2018, 13:16
1
For any questions like this one, it is easiest to group the numbers together.
In other words, instead of doing the summation: 10+9+8+7+...+1
Do the summation: (10+1)+(9+2)+...+(6+5)=11+11+11+11+11=11*5=55
B
In other words, instead of doing the summation: 10+9+8+7+...+1
Do the summation: (10+1)+(9+2)+...+(6+5)=11+11+11+11+11=11*5=55
B
Re: If each of the small squares in the figure above has area 1,
[#permalink]
16 Jan 2019, 18:49
16 Jan 2019, 18:49
1
10/2 * 11 * 1 = 55
