Search found 46 matches
Re: If x and y are greater than 0, is x = 1 ?
If x and y are greater than 0, is x = 1 ? (1) x/y = 1 This means x=y. All values will satisfy the equation. Insufficient (2) xy = 1 x=1/y. Thus, x and y are reciprocal, and all values will again satisfy the equation. Insufficient Combined. x=y=1/y So, y=1/y will give us y^2=1 or y = 1 or -1. But y>0...
- by chetan.sharma
Tue Feb 21, 2023 9:38 am- Forum: Data Sufficiency
- Topic: If x and y are greater than 0, is x = 1 ?
- Replies: 3
- Views: 570
Re: If x and y are greater than 0, is x = 1 ?
If x and y are greater than 0, is x = 1 ? (1) x/y = 1 This means x=y. All values will satisfy the equation. Insufficient (2) xy = 1 x=1/y. Thus, x and y are reciprocal, and all values will again satisfy the equation. Insufficient Combined. x=y=1/y So, y=1/y will give us y^2=1 or y = 1 or -1. But y>0...
- by chetan.sharma
Tue Feb 21, 2023 9:36 am- Forum: Data Sufficiency
- Topic: If x and y are greater than 0, is x = 1 ?
- Replies: 3
- Views: 570
Is \(x = 4?\) \((1)\quad |x + 2| < 10\) \((2) \quad |x + 5| > 10\) [spoiler]OA=B[/spoiler] Source: Veritas Prep TWO ways.. (I) Just substitute x=4 and see what happens.. \((1)\quad |x + 2| < 10\) |4+2|<10...6<10..Yes But x as -4, 0, 1 and so on also fit in Insuff \((2) \quad |x + 5| > 10\) |4+5|>10...
- by chetan.sharma
Wed Nov 27, 2019 7:52 am- Forum: Data Sufficiency
- Topic: Is \(x = 4?\)
- Replies: 2
- Views: 700
A certain bushel of wheat generates one-third the profit of a bushel of corn. If a bushel of corn generates five-fourths the profit of a bushel of truffles, what fraction of the profit from a bushel of wheat is the profit from a bushel of truffles? A. 5/12 B. 4/5 C. 5/4 D. 5/3 E. 12/5 Is there a st...
- by chetan.sharma
Wed Nov 27, 2019 7:40 am- Forum: Problem Solving
- Topic: A certain bushel of wheat generates one-third the profit of
- Replies: 5
- Views: 1150
When positive integer n is divided by 3, the remainder is 2; and when positive integer t is divided by 5, the remainder is 3. What is the remainder when the product nt is divided by 15? (1) n-2 is divisible by 5. (2) t is divisible by 3. OA C Source: GMAT Prep So n=3x+2 and t=5y+3 nt=(3x+2)(5y+3)=1...
- by chetan.sharma
Fri Oct 05, 2018 5:09 am- Forum: Data Sufficiency
- Topic: When positive integer n is divided by 3, the remainder is 2
- Replies: 4
- Views: 1241
Three piles (A, B, C) of 7 beans each are to be made from 12 red, 5 yellow and 4 green beans. If each stack must contain at least one bean of each color and stack A must get the maximum number of red beans possible, what is the minimum number of red beans to be put in stack B? (A) 1 (B) 2 (C) 3 (D)...
- by chetan.sharma
Fri Oct 05, 2018 4:58 am- Forum: Problem Solving
- Topic: Three piles (A, B, C) of 7 beans each are to be made from 12
- Replies: 2
- Views: 681
Straight forward..Max@Math Revolution wrote:[Math Revolution GMAT math practice question]
||2-3|-|2-5||=?
A. 1
B. 2
C. 3
D. 4
E. 5
||2-3|-|2-5||=||-1|-|-3||=|1-3|=2
[spoiler]B
- by chetan.sharma
Fri Oct 05, 2018 4:53 am- Forum: Problem Solving
- Topic: ||2-3|-|2-5||=?
- Replies: 4
- Views: 790
A box contains 1 blue ball, 1 green ball, 1 yellow ball, and 2 red balls. Three balls are randomly selected (one after the other) without replacement. What is the probability that the 2nd ball is NOT red and the 3rd ball is yellow? A) 1/30 B) 1/20 C) 1/10 D) 3/20 E) 1/5 [spoiler]OA=C[/spoiler]. How...
- by chetan.sharma
Mon Apr 02, 2018 7:07 pm- Forum: Problem Solving
- Topic: A box contains 1 blue ball, 1 green ball, 1 yellow ball
- Replies: 3
- Views: 969
How do i prove that 52563744 is divisible by 24 ? Hi, for being div by 24, the numbershould be div by 3 and 8.. for 8 or 2^3, we check for div of last three digits of number.. so if 744 is div by 8, the entire number will be div by 8.. 744/8 = 93.. so YES now 3.. for a number to be div by 3, the su...
- by chetan.sharma
Wed May 04, 2016 2:42 pm- Forum: Problem Solving
- Topic: How do i prove that 52563744 is divisible by 24 ?
- Replies: 5
- Views: 5407
Which of the following is true about 0<|x|-4x<5? A. -1<x<0 B. 0<x<1 C. 1<x<2 D. 2<x<3 E. 3<x<4 * A solution will be posted in two days. The choices have made the Q very simple.. when can be |x|-4x be greater than 0.. NEVER when x is positive.. ONLY A is left.. Substitution:- you can also substitute...
- by chetan.sharma
Tue Apr 26, 2016 8:05 am- Forum: Problem Solving
- Topic: Which of the following is true about 0<|x|-4x<5? A. -
- Replies: 2
- Views: 1254
At a circular table for eight will sit six adults and two small children. The two children will sit next to each other, and the two parents of the children will sit next to the children so that there is one parent on each side of the two children. If rotating their positions around the table is not...
- by chetan.sharma
Tue Apr 26, 2016 5:30 am- Forum: Problem Solving
- Topic: At a circular table for eight will sit six adults
- Replies: 3
- Views: 1669
Is there some rubric or step process that will work for these types of problems? HI, the most important thing is to get both the cans in SAME ounces- concentrate is in 12-ounces can and juice or final product is in 6-ounces.. 1 ounce concentrate mixes with 3-ounces of water to give us (1+3) ounces ...
- by chetan.sharma
Mon Apr 25, 2016 8:09 pm- Forum: GMAT Math
- Topic: Confusing Word Problem
- Replies: 4
- Views: 3840
A list contains n distinct integers. Are all n integers consecutive? (1) The average (arithmetic mean) of the list with the lowest number removed is 1 more than the average (arithmetic mean) of the list with the highest number removed. (2) The positive difference between any two numbers in the list...
- by chetan.sharma
Mon Apr 25, 2016 7:59 pm- Forum: Data Sufficiency
- Topic: n integers consecutive
- Replies: 1
- Views: 1211
How should I be thinking about problems like this one? Hi, we can see that the belt covers half the circumference of left wheel and half the circumference of right belt.. so it overall covers the entire circumference, which is 1*pi.. so the rest of the belt =15-pi.. this belt covers two times the d...
- by chetan.sharma
Mon Apr 25, 2016 4:58 am- Forum: GMAT Math
- Topic: Geometry cylinder problem
- Replies: 2
- Views: 2190
http://s31.postimg.org/81gqsiuiv/Screen_Shot_2016_04_23_at_9_42_11_AM.jpg Thanks to help. Machine M, working alone at its constant rate, produces x widgets every 4 minutes. Machine N, working alone at its constant rate, produces y widgets every 5 minutes. If machines M and N working simultaneously ...
- by chetan.sharma
Sat Apr 23, 2016 11:24 pm- Forum: Data Sufficiency
- Topic: Rate and work
- Replies: 3
- Views: 1604