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From Statement (1) We have take 4 option for values of X and Y to cover all suitable scenarios. 1. X and Y are lowest possible values 2. X is lowest possible value and Y is highest possible value 3. X is highest possible value and Y is lowest possible value 4. X and Y are highest possible values. 1....

by SampathKp

Thu Dec 26, 2019 3:42 am
Forum: Data Sufficiency
Topic: Is xy + 1 greater than x + y?
Replies: 2
Views: 617

When a certain stretch of highway was rebuilt and straightened, the distance along the stretch was decreased by 20 percent and the speed limit was increased by 25 percent. By what percent was the driving time along this stretch reduced for a person who always drives at the speed limit? A. 16% B.â...

by SampathKp

Thu Dec 26, 2019 3:17 am
Forum: Problem Solving
Topic: When a certain stretch of highway was rebuilt and
Replies: 2
Views: 669

A merchant purchased a jacket for $60 and then determined a selling price that equaled the purchase price of the jacket plus a markup that was 25 percent of the selling price. During a sale, the merchant discounted the selling price by 20 percent and sold the jacket. What was the merchant's gross p...

by SampathKp

Thu Dec 26, 2019 3:08 am
Forum: Problem Solving
Topic: A merchant purchased a jacket for $60 and then determined
Replies: 2
Views: 639

Store N gives a 50 percent discount on the list price of all its items and Store W gives a 60 percent discount on the list price of all its items. If the list price of the same item is 20 percent higher in Store W, what percent (more or less) of the selling price in Store N is the selling price of ...

by SampathKp

Thu Dec 26, 2019 2:39 am
Forum: Problem Solving
Topic: Store N gives a 50 percent discount on the list price of
Replies: 2
Views: 1299

A store bought 5 dozen lamps at $30 per dozen and sold them all at $15 per lamp. The profit on each lamp was what percent of its selling price? A. 20% B. 50% C. \(83 \frac{1}{3}\)% D. 100% E. 500% 1 dozen lamps = 12 lamps 1 dozen laps cost = $30 1 lamp cost $30/12 = $ 2.5 Each lamp was sold for $15...

by SampathKp

Wed Dec 25, 2019 3:44 pm
Forum: Problem Solving
Topic: A store bought 5 dozen lamps at $30 per dozen and sold them
Replies: 3
Views: 952

https://i.postimg.cc/sMWbQkGN/2019-09-21-1849.png The table above shows the percent of change from the previous month in Company X's sales for February through June of last year. A positive percent indicates that Company X's sales for that month increased from the sales for the previous month, and ...

by SampathKp

Wed Dec 25, 2019 8:33 am
Forum: Problem Solving
Topic: The table above shows the percent of change from the
Replies: 2
Views: 773

A certain brand of house paint must be purchased either in quarts at $12 each or in gallons at $18 each. A painter needs a 3-gallon mixture of the paint consisting of 3 parts blue and 2 parts white. What is the least amount of money needed to purchase sufficient quantities of the two colors to make...

by SampathKp

Tue Dec 24, 2019 2:02 pm
Forum: Problem Solving
Topic: A certain brand of house paint must be purchased either in
Replies: 3
Views: 938

Percentages

The annual stockholders' report for Corporation X stated that profits were up 10 percent over the previous year, although profits as a percent of sales were down 10 percent. Total sales for that year were approximately what percent of sales for the previous year? A. 78% B. 90% C. 110% D. 12...

by SampathKp

Tue Dec 24, 2019 6:24 am
Forum: Problem Solving
Topic: The annual stockholders' report for Corporation X stated
Replies: 2
Views: 980

Prime Factorization

If n is a positive integer, and the product of all integers from 1 to n, inclusive, is a multiple of 990, what is the least possible value of n? a) 10 b) 11 c) 12 d) 13 e) 14 Thanks in advance :-) Prime factorization of 990 we get 990 = 2x3^2x5x11. The implication of the above is that even though w...

by SampathKp

Mon Dec 23, 2019 1:45 pm
Forum: Problem Solving
Topic: If n is a positive integer, and the product of all integers
Replies: 6
Views: 13124

If a and b are integers, is a^5 < 4^b ? (1) a^3 = –27 (2) b^2 = 16 A Source: Official Guide 2020 Given a^5 value depends on value of a if its odd/even positive/negative integer. given 4^b is always positive regardless of value of b. An even number raised to the power of odd or even is always even...

by SampathKp

Sat Dec 21, 2019 8:39 am
Forum: Data Sufficiency
Topic: If a and b are integers, is a^5 < 4^b ?
Replies: 4
Views: 1037

If a merchant purchased a sofa from a manufacturer for $400 and then sold it, what was the selling price of the sofa? (1) The selling price of the sofa was greater than 140 percent of the purchase price. (2) The merchant's gross profit from the purchase and sale of the sofa was 1/3 of the selling p...

by SampathKp

Sat Dec 21, 2019 4:35 am
Forum: Data Sufficiency
Topic: If a merchant purchased a sofa from a manufacturer for $400
Replies: 3
Views: 1382

more detail

If a and b are constants, is the expression (x+b)/(√(x+a)) defined for x = –2 ? (1) a = 5 (2) b = 6 A Source: Official Guide 2020 Given expression (-2+b)/√-2+a depends on value a rather b because √-2+a has square root and in denominator. Square root of negative number is imaginary number an...

by SampathKp

Sat Dec 21, 2019 4:24 am
Forum: Data Sufficiency
Topic: If a and b are constants, is the expression
Replies: 4
Views: 1318

At a supermarket, John spent 1/2 of his money on fresh fruits and vegetables, 1/3 on meat products, and 1/10 on bakery products. If he spent the remaining $6 on candy, how much did John spend at the supermarket? A) $60 B) $80 C) $90 D) $120 E) $180 B Total money spent on super market = X So given e...

by SampathKp

Fri Dec 20, 2019 4:29 pm
Forum: Problem Solving
Topic: At a supermarket, John spent
Replies: 3
Views: 4840

In a random sample of 80 adults, how many are college graduates? (1) In the sample, the number of adults who are not college graduates is 3 times the number who are college graduates. (2) In the sample, the number of adults who are not college graduates is 40 more than the number who are college gr...

by SampathKp

Fri Dec 20, 2019 9:56 am
Forum: Data Sufficiency
Topic: In a random sample of 80 adults, how many are college gradua
Replies: 5
Views: 4227

Statistics - Median and Range Combination Question

For 11 distinct positive integers , Median is 90 and Range is 60. Median of the 5 smallest integers is 65. What is maximum range of 5 largest integers

A. 60
B 35
C 32
D 65
E Cant be computed
[/spoiler]

by SampathKp

Fri Dec 20, 2019 3:27 am
Forum: GMAT Math
Topic: Statistics - Median and Range Combination Question
Replies: 2
Views: 13073