Search found 70 matches
Sequence Problem
If the sequence x1, x2, x3, …, xn, … is such that x1 = 3 and xn+1= 2xn– 1 for n≥ 1, then x^20 – x^19 =
A. 2^19
B. 2^20
C. 2^21
D. 2^20 - 1
E. 2^21 - 1
- by taneja.niks
Sat Apr 16, 2011 4:55 am- Forum: Problem Solving
- Topic: Sequence Problem
- Replies: 4
- Views: 1101
I agree with HSPA's solution I had the same one in mind.
@manpsingh87 u didn take the thing that the numbers need to be prime in consideration
for stat1 only 37 and 73 hold.
- by taneja.niks
Fri Apr 15, 2011 4:37 am- Forum: Data Sufficiency
- Topic: MGMAT prob
- Replies: 7
- Views: 1232
MGMAT prob
p and q are different two-digit prime numbers with the same digits, but in reversed order. What is the value of the larger of p and q?
(1) p + q = 110
(2) p – q = 36
what shall be he right answer??
- by taneja.niks
Fri Apr 15, 2011 3:19 am- Forum: Data Sufficiency
- Topic: MGMAT prob
- Replies: 7
- Views: 1232
My take on it... The part " man-eater of the movies" is a modifying phrase that should be put in between the , the phrase modifies the shark so properly followed just after the shark word. and when we see the sentence the later part of the sentence "less than those killed by bee sting...
- by taneja.niks
Sun Apr 10, 2011 11:28 am- Forum: Sentence Correction
- Topic: Only seven people
- Replies: 11
- Views: 2446
- by taneja.niks
Tue Mar 15, 2011 10:16 am- Forum: I just Beat The GMAT!
- Topic: Thank You BTG
- Replies: 5
- Views: 3272
Federal authorities involved in the investigation have found the local witnesses are difficult to locate, reticent, and are suspicious of strangers. (A) the local witnesses are difficult to locate, reticent, and are (B) local witnesses to be difficult to locate, reticent, and are (C) that local witn...
- by taneja.niks
Mon Nov 01, 2010 4:22 am- Forum: Sentence Correction
- Topic: Federal authorities have found...
- Replies: 4
- Views: 1818
A correct and as per ur question why E is wrong. The use of as well as his own envisioning of and then reference of davy's name in the part of the sentence following it makes it sound ambiguous if u read the whole sentence in a go u will find tht. More over here its the “Essay on Heat and Light�...
- by taneja.niks
Sun Oct 31, 2010 10:07 am- Forum: Sentence Correction
- Topic: The nineteenth-century chemist
- Replies: 11
- Views: 9901
GMAT Prep percent
Angela’s grade was in the 90th percentile out of 80 grades in her class. In another class there were 19 grades higher than Angela’s. If nobody had Angela’s grade, then Angela was what percentile of the two classes combined?
a) 72
b) 80
c) 81
d) 85
e) 92
- by taneja.niks
Sun Oct 24, 2010 2:42 am- Forum: Problem Solving
- Topic: GMAT Prep percent
- Replies: 1
- Views: 1218
GMAt Prep number line
Distance between x and y is greater than distance between x and z. Does z lie between x and y on the number line?
a) xyz < 0
b) xy < 0
plz explain
- by taneja.niks
Sun Oct 24, 2010 1:13 am- Forum: Data Sufficiency
- Topic: GMAt Prep number line
- Replies: 2
- Views: 1329
GMAT Prep No. Percentage
A city with population 132000 is to be divided into 11 voting districts, and no district is to have a population that is more than 10% greater than population of any other district. What is minimum possible population of the least populated district? a) 10700 b) 10800 c) 10900 d) 11000 e) 11100 Plea...
- by taneja.niks
Sun Oct 24, 2010 1:01 am- Forum: Problem Solving
- Topic: GMAT Prep No. Percentage
- Replies: 1
- Views: 1002
GMAT Prep No. of Odd Integers
How many odd integers are greater than integer x and less than integer y?
1) There are 12 even integers greater than x and less than y
2) There are 24 integers greater than x and less than y
- by taneja.niks
Fri Oct 22, 2010 11:58 am- Forum: Data Sufficiency
- Topic: GMAT Prep No. of Odd Integers
- Replies: 9
- Views: 1991
GMAT Prep divisibility
For every positive even integer n, the function h(n) is defined to be the product of all even integers from 2 to n inclusive. If p is the smallest prime factor of h(100) + 1, then p is between 1) 2 and 10 2) 10 and 20 3) 20 and 30 4) 30 and 40 5) > 40 Answer >40 how to proceed such questions trying ...
- by taneja.niks
Fri Oct 22, 2010 8:59 am- Forum: Problem Solving
- Topic: GMAT Prep divisibility
- Replies: 4
- Views: 1282
GMAT prep Exponents
If (1/5)m(1/4)18 = 1/2(10)35, m?
on simplifying i get
(5^-35)(2^-35) = (2^35)(5^35)
how to proceed further???
Plz explain
ans m=35
- by taneja.niks
Thu Oct 21, 2010 1:22 am- Forum: Problem Solving
- Topic: GMAT prep Exponents
- Replies: 3
- Views: 1347
GMAT Prep Coordiante
In the X-Y coordinate like L and K intersect at point (4,3) Is the product of their slopes negative??
1) The product of X Intercept of line L&K is +ve
2) The product of Y- Intercept of line L&K is -ve
Please Explain....
- by taneja.niks
Wed Oct 20, 2010 10:30 am- Forum: Data Sufficiency
- Topic: GMAT Prep Coordiante
- Replies: 1
- Views: 1268
Probability GMAT Prep.
If two of the four expressions x+y,x+5y,x-y,5x-y are chosen at random, What is the probability that their product will be of the form x^2- (by)^2, Where b is an integer
1)1/2
2)1/3
3)1/4
4)1/5
6)1/6
- by taneja.niks
Wed Oct 20, 2010 10:27 am- Forum: Data Sufficiency
- Topic: Probability GMAT Prep.
- Replies: 1
- Views: 865