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arithmetic progression
The sum of the fourth and twelfth term of an arithmetic progression is 20. What is the sum of the first 15 terms of the arithmetic progression?
A. 300
B. 120
C. 150
D. 170
E. 270
- by MBA.Aspirant
Wed Nov 23, 2011 9:19 am- Forum: Problem Solving
- Topic: arithmetic progression
- Replies: 4
- Views: 5907
A = {2, 3, 4, 5} B= {4, 5, 6, 7, 8} Two integers will be randomly selected from the sets above, one integer from set A and one integer from set B. WHat is the probability that the sum of the two integers will equal 9? A. 0.15 B. 0.20 C. 0.25 D. 0.30 E. 0.33 Answer is B Can someone please tell me ho...
- by MBA.Aspirant
Wed Nov 23, 2011 1:15 am- Forum: Problem Solving
- Topic: What is the probability that the sum will equal 9??
- Replies: 6
- Views: 6087
Terminating Decimal
If 1/(2^11 * 5^17) is expressed as a terminating decimal, how many non-zero digits will the decimal have?
A) 1
B) 2
C) 4
D) 6
E) 11
- by MBA.Aspirant
Wed Nov 23, 2011 12:55 am- Forum: Problem Solving
- Topic: Terminating Decimal
- Replies: 4
- Views: 6353
Multiple
Let S be the set of all positive integers n such that n^2 is a multiple of both 24 and 108. Which of the following integers are divisors of every integer n in S?
Check all that apply
A) 12
B) 24
C) 36
D) 72
- by MBA.Aspirant
Mon Nov 21, 2011 11:35 am- Forum: Problem Solving
- Topic: Multiple
- Replies: 3
- Views: 1305
eBank
An online bank verifies customers’ ownership of external bank accounts by making both a small deposit and a small debit from each customer’s external account, and asking the customer to verify the amounts. In 70% of these exchanges, the deposit and debit are within two cents of one another (for ...
- by MBA.Aspirant
Mon Nov 21, 2011 4:56 am- Forum: Problem Solving
- Topic: eBank
- Replies: 2
- Views: 1174
Carpenter
A carpenter constructed a rectangular sandbox with a capacity of 10 cubic feet. If the carpenter were to make a similar sandbox twice as long, twice as wide and twice as high as the first sandbox, what would be the capacity, in cubic feet, of the second sandbox? (A) 20 (B) 40 (C) 60 (D) 80 (E) 100 I...
- by MBA.Aspirant
Mon Nov 21, 2011 3:50 am- Forum: Problem Solving
- Topic: Carpenter
- Replies: 4
- Views: 3131
- by MBA.Aspirant
Sat Nov 19, 2011 10:41 pm- Forum: Problem Solving
- Topic: Inscribed Circle
- Replies: 3
- Views: 1430
Because I already posted it there Pemdas, and didn't get a satisfying answer 
. So I posted it here for experts and members to elucidate in a better way.
- by MBA.Aspirant
Fri Nov 18, 2011 10:53 pm- Forum: Problem Solving
- Topic: Data interpretation
- Replies: 3
- Views: 2986
tour buses
For years the beautiful Renaissance buildings in Palitito have been damaged by exhaust from the many tour buses that come to the city. There has been little parking space, so most buses have idled at the curb during each stop on their tour, and idling produces as much exhaust as driving. The city ha...
- by MBA.Aspirant
Fri Nov 18, 2011 8:14 pm- Forum: Critical Reasoning
- Topic: tour buses
- Replies: 2
- Views: 1195
Data interpretation
Please refer to the attached graph Households with efficient appliances and good maintenance can reduce water consumption by about 35%. If approximately half of the residential consumption in town W in 2010 was by households with these characteristics, how many billions of gallons of water were save...
- by MBA.Aspirant
Fri Nov 18, 2011 8:04 pm- Forum: Problem Solving
- Topic: Data interpretation
- Replies: 3
- Views: 2986
let height = 4 and base = 3, area = 1/2 * 3 * 4 = 6
height increased by 0.08 = 4 * 1.08 = 4.32
base increased by 0.06 = 3 * 1.06 = 3.18
area = 1/2 * 3.18 * 4.32 = 6.87
% increase = 0.87/6 = 14.5 %
- by MBA.Aspirant
Wed Nov 16, 2011 10:08 pm- Forum: Problem Solving
- Topic: triangle area
- Replies: 2
- Views: 1005
- by MBA.Aspirant
Wed Nov 16, 2011 9:15 pm- Forum: Ask an MBA Admissions Consultant
- Topic: Please evaluate my profile
- Replies: 1
- Views: 1064
- by MBA.Aspirant
Wed Nov 16, 2011 4:53 pm- Forum: Problem Solving
- Topic: Russell sells used cars
- Replies: 5
- Views: 1258
- by MBA.Aspirant
Wed Nov 16, 2011 4:27 pm- Forum: Problem Solving
- Topic: If x is an even interger
- Replies: 6
- Views: 1860
height = 3 √3sanju09 wrote:What is the area of the trapezoid ABCD if AB = BC = CD = 6, and AD = 12?
(A) 6√6
(B) 18√2
(C) 18√3
(D) 27√2
(E) 27√3
area = (6+12)/2 * 3 √3= 27 √3
- by MBA.Aspirant
Wed Nov 16, 2011 4:21 pm- Forum: Problem Solving
- Topic: the trapezoid ABCD
- Replies: 3
- Views: 4691