Hello everyone!
I am about 3weeks away and took the Gmat prep test 1 and got a 590 36V 35 Q, my goal is to get at least 700. I struggled with some of the questions on the prep test and need help with Algebra, as that is my biggest problem, simplifying algebraic expressions. here are some of the questions I could not figure out. thanks for your inputs.
#1: (1/5)^m (1/4)^18=(1/((2(10)^35)) what is the value of m?
#2: The perimeter of a certain isosceles right triangle is 16+16V2. What is the length of the hypothenuse of the triangle?
here I am pretty comfortable with the pythagorean theorem and the special right triangles but this question was a trip. I couldn't figure out why the answer is 16 and not 8V2.
#3:For a finite sequence of non zero numbers, the number of variations in sign is defined as the number of pairs of consecutive terms of the sequence for which the product of the 2 consecutive term is negative. What is the number of variation in sign for the sequence 1, -3, 2, 5, -4, -6 ?
a) One b) two c) three d) four e)five
#3: A basket contains 5 apples, of which 1 is spoiled and the rest are good. If henry is to select 2 apples simultaneously and at random, what is the probability that the 2 apples selected will include the spoiled apple? The solution says is 2/5 but there is no explanation how we get that answer.
Thanks!
I am about 3weeks away and took the Gmat prep test 1 and got a 590 36V 35 Q, my goal is to get at least 700. I struggled with some of the questions on the prep test and need help with Algebra, as that is my biggest problem, simplifying algebraic expressions. here are some of the questions I could not figure out. thanks for your inputs.
#1: (1/5)^m (1/4)^18=(1/((2(10)^35)) what is the value of m?
#2: The perimeter of a certain isosceles right triangle is 16+16V2. What is the length of the hypothenuse of the triangle?
here I am pretty comfortable with the pythagorean theorem and the special right triangles but this question was a trip. I couldn't figure out why the answer is 16 and not 8V2.
#3:For a finite sequence of non zero numbers, the number of variations in sign is defined as the number of pairs of consecutive terms of the sequence for which the product of the 2 consecutive term is negative. What is the number of variation in sign for the sequence 1, -3, 2, 5, -4, -6 ?
a) One b) two c) three d) four e)five
#3: A basket contains 5 apples, of which 1 is spoiled and the rest are good. If henry is to select 2 apples simultaneously and at random, what is the probability that the 2 apples selected will include the spoiled apple? The solution says is 2/5 but there is no explanation how we get that answer.
Thanks!
