Search found 25 matches


OG 13 DS 79

In the figure, is the area of triangular region ABC equal to the area of triangular region DBA?

1) (AC)²=2(AD)²

2) â–²ABC is Isosceles.
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by Priyaranjan

Sat Dec 26, 2015 9:28 am
Forum: Data Sufficiency
Topic: OG 13 DS 79
Replies: 2
Views: 1491

OG 13 DS 113

Q. In triangle ABC, point X is the midpoint of side AC and point Y is the midpoint off side BC. If point R is the midpoint of line segment XC and if point S is the midpoint of line segment YC, what is the area of triangular region RCS? 1) The area of triangular region ABX is 32. 2) The length of one...

by Priyaranjan

Sat Dec 26, 2015 9:07 am
Forum: Data Sufficiency
Topic: OG 13 DS 113
Replies: 1
Views: 1157

Counting- Mario's Pizza

Q.Mario's Pizza has 2 choices of crust: deep dish and thin-and-crispy. The restaurant also has a choice of 5 toppings: tomatoes, sausage, peppers, onions, and pepperoni. Finally, Mario's offers every pizza in extra cheese as well as regular. If Linda's volleyball team decides to order a pizza with 4...

by Priyaranjan

Mon Dec 21, 2015 5:58 am
Forum: Problem Solving
Topic: Counting- Mario's Pizza
Replies: 3
Views: 1871

GCD of J & K

What is the greatest common divisor of positive integers j & k.

1) The greatest common divisor of 3j & 2k is 2.
2) The greatest common divisor of 5j & k is 10.

by Priyaranjan

Wed Dec 16, 2015 8:40 am
Forum: Data Sufficiency
Topic: GCD of J & K
Replies: 3
Views: 1903

Hiking

Q. Annika hikes at a constant rate of 12 minutes per kilometre. She has hiked 2.75 kilometres east from the start of a hiking trail when she realizes that she has to be back at the start of the trail in 45 minutes. If Annika continues east, then turns around and retraces her path to reach the start ...

by Priyaranjan

Sun Dec 06, 2015 2:24 am
Forum: Problem Solving
Topic: Hiking
Replies: 7
Views: 3638

Weighted Average

A feed store sells two varieties of birdseed: Brand A which is 40% millet and 60% sunflower, and Brand B, which is 65% millet and 35% sunflower. If a customer purchases a mix of the two types of birdseed that is 50% millet, what percent of the mix is Brand A?

by Priyaranjan

Thu Dec 03, 2015 8:36 am
Forum: Problem Solving
Topic: Weighted Average
Replies: 2
Views: 985

DS

Q. Is |x|< 1?

I) |x + 1| = 2|x – 1|
II) |x – 3| > 0

by Priyaranjan

Sat Nov 28, 2015 2:49 am
Forum: Data Sufficiency
Topic: DS
Replies: 1
Views: 1160

Compound Functions

Q. If g(x)= 3x+√x, what is the value of g(d^2+6d+9)

Ans. Can I solve this way?

d^2+6d+9= (d+3)(d+3)= d= -3

g(-3)= 3(-3)+√-3= -9-√3.

by Priyaranjan

Thu Nov 26, 2015 9:39 pm
Forum: Problem Solving
Topic: Compound Functions
Replies: 1
Views: 1010

Inverse Proportionality

Q. The "luminous flux", or perceived brightness, of a light source is measured in lumens and is inversely proportional to the square of the distance from the light. If a light source produces 200 lumens at a distance of 3 meters, at what distance will the light source produce a luminous flux of 25 l...

by Priyaranjan

Thu Nov 26, 2015 9:23 pm
Forum: Problem Solving
Topic: Inverse Proportionality
Replies: 1
Views: 1002

Direct Proportionality

Q. The velocity of a falling object in a vacuum is directly proportional to the amount of time the object has been falling. If after 5 seconds an object is falling at a speed of 90 miles per hour, how fast will it be falling after 12 seconds?

by Priyaranjan

Thu Nov 26, 2015 9:19 pm
Forum: Problem Solving
Topic: Direct Proportionality
Replies: 1
Views: 898

Radios & Clocks

Q. A retailer sells only radios and clocks. If she currently has 44 total items in inventory, how many of them are radios?

I. The retailer has more than 28 radios in inventory.
II. The retailer has less than twice as many radios as clocks in inventory.

by Priyaranjan

Wed Nov 25, 2015 4:45 pm
Forum: Data Sufficiency
Topic: Radios & Clocks
Replies: 3
Views: 1366

In answer choice D, if p=1, q=2, then q/(p²)= 2/1²= 2/1=2 >1 If p/q < 1 and p and q are positive integers, which of the following must be greater than 1? A) √(p/q) B) p/(p²) C) p/2q D) q/(p²) E) q/p Given: p/q < 1 Since q is POSITIVE, we can multiply both sides of the inequality by q to get p ...

by Priyaranjan

Mon Nov 16, 2015 8:09 pm
Forum: Problem Solving
Topic: Which must be greate than 1?
Replies: 7
Views: 5547

Q.95 GMAT OG 13th Edition

Q. Studies in restaurants show that the tips left by customers who pay their bill in cash tend to be larger when the bill is presented on a tray that bears a credit-card logo. Consumer psychologists hypothesize that simply seeing a credit-card logo makes many credit-card holders willing to spend mor...

by Priyaranjan

Sun May 17, 2015 1:29 am
Forum: Critical Reasoning
Topic: Q.95 GMAT OG 13th Edition
Replies: 10
Views: 3251

Q.112 GMAT OG 13th Edition

Q. A certain characteristic in a large population has a distribution that is symmetric about the mean (m). If 68% of the distribution lies within one standard deviation (d) of the mean, what percent of the distribution is less than m+d?

A) 16%
B) 32%
C) 48%
D) 84%
E) 92%

by Priyaranjan

Sun Apr 19, 2015 8:38 am
Forum: Problem Solving
Topic: Q.112 GMAT OG 13th Edition
Replies: 6
Views: 2908

Sir, I've got the same result, but followed another rule of the Triangles. As this was a 90-45-45 degree triangle, the ratio of their sides would be x:x:√2x. As √2x=20,x=20/√2. Perimeter= 20*4/√2=80/√2≈57.1... (where √2=1.4) So, the approximate value would be option B)60. Kindly let me...

by Priyaranjan

Sun Apr 12, 2015 12:41 am
Forum: Problem Solving
Topic: Q.104, PS GMAT Review 13th Edition
Replies: 5
Views: 3018