Search found 4 matches
I guess I should have been a little more specific, the nonnegative sqrt of a number is called the principal sqrt of that number and unless specified, when we talk about a sqrt of a number we are talking about the principal sqrt, this is true for both general mathematics and GMAT. Regards Not necess...
- by srawat_itpro
Fri Dec 28, 2007 2:56 am- Forum: GMAT Math
- Topic: can we consider SQRT(n) be negative?
- Replies: 9
- Views: 6002
Re: GMAT Prep Question
1) When positive integer n is divided by 3, remainder is 2. When positive integer t is divided by 5, remainder is 3. What is the remainder when product nt is divided by 15. a) n -2 is divisible by 5 b) t is divisible by 3 please provide explaination. Hi My two cents... from Q: n=3i + 2 [i>=0] t=5j ...
- by srawat_itpro
Fri Dec 21, 2007 12:11 am- Forum: Data Sufficiency
- Topic: GMAT Prep Question
- Replies: 10
- Views: 2723
Re: Arithmetic
Can someone explain why multiplying both sides of the equation is incorrect if you want to remove the fraction in the denominator. R = [24F/N]/[P+A/12] I saw the following question on the GMAT Prep Software exam, and the question stated "Which of the following is an equivalent form of the form...
- by srawat_itpro
Thu Dec 20, 2007 11:26 pm- Forum: GMAT Math
- Topic: Arithmetic
- Replies: 6
- Views: 6046
Hi S Vijay, 1) Grace must take out n-1 stones for her to ensure that only one of each color is left, thus RED -> 8-1 = 7 stones must be taken out. GREEN -> 4-1 = 3 stones BLUE -> 4-1 = 3 stones In order for her to know that she has minimum one of each color the total number of stones taken out shoul...
- by srawat_itpro
Wed Dec 19, 2007 11:56 pm- Forum: Problem Solving
- Topic: Basic Algebra Problem
- Replies: 4
- Views: 5570