Point P,Q,R,S are the mid points of AB,CD,EF,GH resp if a regular octagon. What is the ratio of area of square PQRS to the octagon Abcdefgh
Could not understand this...
For m= -42 will the condition still be valid???
Facing difficulties with these problems.... There is an "up-on"... Explanation required...Could not understand from solution...
I need an alternate approach to this question by using similarity of triangles. I got answer using Secant theorem. But when I used similarity concept, I do not know where I'm going wrong!!
http://i.imgur.com/HgRHW7Y.png
My approach:
Radius of the smaller circle = r
Radius of the larger circle = R
OAX is similar to OBY. So, OA/OB=OX/OY
=> 20/30 = (16+R)/(16+2r+R) and r/R=20/30
I get r and R as 4 and 6 respectively. But the answer varies when Secant theorem is used. Am I going wrong anywhere?
OA: r=4.5, R=13.5
I need help with these questions .
1. Find { (1997) ^ (1998*1999) } mod 100 .
2. A 4 digit no N exceeds the no. formed by reversing its digits by K , where K is a positive multiple of 74 . The least value of N lies b/w -
a. 1000&1300 b. 1900&2200 c. 1300&1600 d. 1600&1900
There is a staircase of 10 steps. In how many ways can Amit climb the staircase if he can take a maximum of 3 steps at a time? Explanation pls.
In How many ways 100 can be represented as a sum of three natural no.s
To set up a farm, a farmer goes to buy some animals. He selects from cows, sheep, goats, chickens and pigs. In how many ways can he select 15 animals such that he selects atleast 1 cow, 2 sheep, 2 goats and 3 chicken.
Please explain solution
- 1306
- 330
- 210
- 420
- 1215
0 voters
To set up a farm, a farmer goes to buy some
animals. He selects from cows, sheep, goats, chickens and pigs. In how many
ways can he select 15 animals such that he selects atleast 1 cow, 2 sheep, 2
goats and 3 chicken?
Please explain solution.
1215
1306
210
330
420
TITA question.
On Thursday night, 120 college students are drinking beer at a local bar. Each student drinks either light beer or dark beer. One-third of the students are female, and one-fifth of the students drink dark beer. If 10 of the students are male and drink dark beer, how many female students drink light beer?
When I left home for office on a particular day my father's watch showed 7:00 PM, and when I reached my office my watch showed 7:50 PM. Next day in the morning when my father's watch showed 6:00 AM, my watch showed 7:30 AM. If my father's watch runs at normal speed and my watch gains 5 minutes per hour, then the time taken by me to reach my office from home, on that day, was closest to(1) 15 minutes (2) 13 minutes 38 seconds(3) 13 minutes 50 seconds (4) 14 minutes 50 seconds
TITA Question
In how many ways can 2700 be written as a product of 8 distinct integers?
In How many ways can 21600 be written as product of two numbers whose HCF=1?
If A = {14,−11, 19, 11, 7, 41, 16, 23}
Find the average of the averages of all the possible triplets of numbers taken from the given set A.
Type in your answer in numeric format only.
Solve |x-1| + |x+3| - |x+5| = 10.
How to solve this type of questions. Any source to learn this ?
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X has some amount of money with with which he can buy 60 shirts or 50 trousers. If he uses 10% money to buy a cold drink and then buys 24 shirts. How many trousers can he buy with the remaining money?
A shop WSS sells two products - product A and product B. Due to a festive offer, the shop increases the selling price of product A by 50% and makes product B free along with product A. By doing this, it's profit decreases by 40%. If the shopkeeper still earns 20% profit on the selling price, then the total percentage discount offered by him is: