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Which of the following is closest to 1/9+1/99+1/999 Approximation Approach: 1/9 = 0.111... 1/99 ≈ 1/100 = 0.01 1/999 ≈ 1/1000 = 0.001 So, (1/9 + 1/99 + 1/999) ≈ 0.111... + 0.01 + 0.001 = 0.122 Now, 1/8 = 0.125 and 1/6 ≈ 0.166... Hence, option C is the closest. The correct answer is C. Ok, I...
- by gopal.prashad
Tue Jul 10, 2012 5:38 pm- Forum: Problem Solving
- Topic: Which of the following is closest to 1/9+1/99+1/999
- Replies: 5
- Views: 2835
I have selected the option E as 84 is highest count of triangle in option. The logic behind it is for the given limits of value we can have infinite number of real number combinations. for eg keeping Y fixed x co-ordinate can have the value between 1 to 3. It isn't a mandatory condition that we sho...
- by gopal.prashad
Tue Jul 10, 2012 5:26 pm- Forum: Problem Solving
- Topic: How many triangles on the coordinate plane
- Replies: 131
- Views: 80066