Search found 6 matches
#70 GMAT 2017
I don't understand how to even begin solving this. The explanation says multiply by P, but where does 2P come from?
- by jmacym
Thu Oct 27, 2016 11:44 am- Forum: Problem Solving
- Topic: #70 GMAT 2017
- Replies: 4
- Views: 2870
- by jmacym
Tue Oct 18, 2016 10:33 am- Forum: Problem Solving
- Topic: OG 16 Question 67
- Replies: 9
- Views: 5167
Operations on radical expressions
10.) Which of the following is the value of 3 √ 0.000064? 0.000064 is rewritten as 3 √ 64 X 10 ^ -6 (this I understand) √ 4 x 10 ^ -2 (this is where I am lost, I understand square root of four because 4x4x4 = 64, but where is the 10 to the negative second power coming from?) √4 x √ 10 ^ -2...
- by jmacym
Tue Oct 18, 2016 9:53 am- Forum: Problem Solving
- Topic: Operations on radical expressions
- Replies: 3
- Views: 2195
Operations with Rational Numbers
One of my review questions... The sum 7/8 + 1/9 is between... The correct answer is (B) 3/4 and 1 The explanation is as follows: Since 1/9 < 1/8, 7/8 + 1/9 < 7/8 + 1/8 = 1 answer choices C, D, and E can be eliminated. Since 7/8 > 6/8 = 3/4, 7/8 + 1/9 > 3/4 answer choice A can be eliminated. Thus, 3/...
- by jmacym
Sat Oct 08, 2016 10:42 am- Forum: Problem Solving
- Topic: Operations with Rational Numbers
- Replies: 5
- Views: 2549
Number Line Data Sufficiency
Of the four numbers represented on the number line above, is R closest to zero?
1) q = -s
2) -t < q
< ____________________ >
Q R S T
I have the answer in my study book, but can anyone explain the steps of getting to the answer? I don't understand [/img][/list]
- by jmacym
Fri Sep 30, 2016 10:02 am- Forum: Problem Solving
- Topic: Number Line Data Sufficiency
- Replies: 2
- Views: 1675
Operations on integers
I have the 2017 GMAT prep book and number 98 in "Problem Solving" has me confused. The sum of all the integers k such that -26 < k < 24 is ..... A 0 B -2 C -25 D -49 E -51 There is an answer explanation of why it is D, but I don't follow how they got a value for K and therefore answer D.
- by jmacym
Thu Sep 29, 2016 10:36 am- Forum: Problem Solving
- Topic: Operations on integers
- Replies: 4
- Views: 1557