Interested to Buy Any Domain ? << Click Here >> for more details...
There is a grid of 20 squares by 10 squares. How many
different rectangles are possible?
Note that square is a rectangle.
- 1 Answers
- 11434 Views
- I also Faced
- E-Mail Answers
Answer / guest
11550
The Generic solution to this is:
Total number of rectangles = (Summation of row numbers) *
(Summation of column numbers)
Here there are 20 rows and 10 columns or vice versa. Hence,
total possible rectangles
= ( 20 + 19 + 18 + 17 + 16 + .... + 3 + 2 + 1 ) * ( 10 + 9
+8 + 7 + .... + 3 + 2 + 1)
= ( 210 ) * (55)
= 11550
Hence, total 11,550 different rectangles are possible.
If you don't believe it, try formula on some smaller grids
like 4x2, 3x2, 3x3 etc...
| Is This Answer Correct ? | 25 Yes | 0 No |
Given 3 jabs A,B,C with capacities 10L 8L 5 L You can get water from tap or pour away the water in the jar 1. How do you get 9L in jar A? 2. How do you get 7L in jar B?
can you work well under deadlines or pressure?
1 Answers Academy Of Aerospace Aviation, Qatar Airlines,
3 men are running in circle man A run with 20m/hr, man B run with 40m/hr, man C run with 50 m/hr , and the radius of cirlce is 200m then at what time they will meet together
there are 5 boxes each of which contains coins. all the boxes except one box contains coins whose weight is 100 grams.(each coin weight is 100gm). only one box contains coins tat weigh 90gm each. u r given a digital balance. in how many trys can u find out which box contains 90gm coins?
arrange these alphabets evenymroin in to three words
On 20 feet high pol a monkey climb/jump 4 feet and every time he fel/slip down 3 feet then, how many jump/climb he reach at top of the pol?
16 Answers Delhi Police, Ellar Infotech, LIC, Syntel,
Mr. D'souza has bought four cars - Merc, Honda, Ford, Zen - as presents for his sons' birthdays, all of which are next week. Given the following information, what will each son get? Alan will not get the Honda unless Barry gets the Merc and Denzil gets the Ford. Barry will not get the Ford unless Carl gets the Zen and Alan gets the Merc. Denzil will not get the Zen unless Alan gets the Honda and Barry gets the Merc. Alan will not get the Merc unless Carl gets the Zen and Denzil gets the Ford. Barry will not get the Merc unless Alan gets the Zen and Denzil gets the Ford. Alan will not get the Zen unless Barry gets the Honda and Carl gets the Merc. Carl will not get the Zen unless Barry gets the Honda and Alan gets the Ford. Alan will not get the Ford unless Barry gets the Zen and Denzil gets the Honda. Carl will not get the Merc unless Denzil gets the Honda.
The secret agent X emailed a code word to his head office. They are "AIM DUE OAT TIE MOD". But four of these five words are fake and only one contains the information. The agent X also mailed a sentence as a clue - if I tell you any one character of the code word, you would be able to tell the number of vowels in the code word. Can you tell which is the code word?
why the students are lag for answering this type of questions?
There are 25 horses and five tracks. There is no stop clock and we have to find the top 5 horses in the bunch. What is the minimum possible races ?
Classic: If a bear walks one mile south, turns left and walks one mile to the east and then turns left again and walks one mile north and arrives at its original position, what is the color of the bear
16 Answers ADP, Microsoft, OSI, TCS, Tech Mahindra,
name the cities which consist of a fruit name in its starting?
English 
