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Que: What is the arithmetic mean of 2x and 10z?

Que: What is the arithmetic mean of 2x and 10z?

1. x + 5z = 10.
2. x + z = 5.


Re: Que: A spice trader increased the selling price of a bag of spices by 40 percent and...........

Solution: Let us apply the IVY approach to solve the question. As we are dealing with percentage, then let the original price of the bag of spices be $100. Price after increment by 40%: (100 + 40)% of $100 => (\(\frac{140}{100}\)) * $100 = $140 Price after second increment by 20%: (100 + 20)% of $1...


Re: Que: Is \(pq<5\)?

Solution: To save time and improve accuracy on DS questions in GMAT, learn and apply the Variable Approach. Forget conventional ways of solving math questions. For DS problems, the VA (Variable Approach) method is the quickest and easiest way to find the answer without actually solving the problem....

by [email protected] Revolution

Wed Aug 18, 2021 7:47 pm
Forum: Data Sufficiency
Topic: Que: Is \(pq<5\)?
Replies: 1
Views: 119

Que: A spice trader increased the selling price of a bag of spices by 40 percent and...........

Que: A spice trader increased the selling price of a bag of spices by 40 percent and then again increased by 20 percent. Which of the following represents the final percent change in the selling price of the bag of spices? (A) 28% less (B) 40% more (C) 60% less (D) 60% more (E) 68% more


Que: Is \(pq<5\)?

Que: Is \(pq<5\)?

(1) \(p>-4\ and\ q<1\).
(2) \(p<-2\ and\ q>-4\).

by [email protected] Revolution

Mon Aug 16, 2021 9:15 pm
Forum: Data Sufficiency
Topic: Que: Is \(pq<5\)?
Replies: 1
Views: 119

Re: Que: A juice machine has 500 liters of watermelon pulp in stock, 20 percent of which is water.....

Solution: The resultant percentage will be the weighted average of the percentages of the above two stocks. => \(\frac{500\cdot\frac{20}{100}+200\cdot\frac{20}{100}}{500+200}\cdot100\) => \(\frac{100+40}{700}\cdot100\) => \(\frac{140}{700}\cdot100\)=> 20% Therefore, B is the correct answer. Answer B


Re: Que: If a and b are positive integers, is ab a multiple of 18?

Solution: To save time and improve accuracy on DS questions in GMAT, learn and apply the Variable Approach. Forget conventional ways of solving math questions. For DS problems, the VA (Variable Approach) method is the quickest and easiest way to find the answer without actually solving the problem....


Que: A juice machine has 500 liters of watermelon pulp in stock, 20 percent of which is water.....

Que: A juice machine has 500 liters of watermelon pulp in stock, 20 percent of which is water. If another 200 liters of watermelon pulp of which 20 percent is water, is added to the machine what percent, by volume, of the machine’s watermelon pulp contains water? (A) 10% (B) 20% (C) 25% (D) 30% (E)...


Que: If a and b are positive integers, is ab a multiple of 18?

Que: If a and b are positive integers, is ab a multiple of 18?

(1) a is a multiple of 6.
(2) b is a multiple of a.


Re: Que: In a toy shop if a toy car attracts a sales tax rate of $2.50 per $50. What is the sales tax rate......

Solution: Tax paid on $50 = $2.50. Thus, a tax, which is four times as much as the above, would be $(2.50 × 4) = $10.00 on $50. Thus, the tax rate = \(\ \frac{10}{50}=0.2\) Thus, this tax, expressed as a percentage = \(0.2=100\cdot\ \frac{2}{10}=20\%\) Therefore, D is the correct answer. Answer D


Re: Que: When P is divided by 2, is the remainder 1?

Solution: Solution: To save time and improve accuracy on DS questions in GMAT, learn and apply the Variable Approach. Forget conventional ways of solving math questions. For DS problems, the VA (Variable Approach) method is the quickest and easiest way to find the answer without actually solving th...


Que: In a toy shop if a toy car attracts a sales tax rate of $2.50 per $50. What is the sales tax rate......

Que: In a toy shop if a toy car attracts a sales tax rate of $2.50 per $50. What is the sales tax rate, as a percent, for a robot car that attracts 4 times as much as the rate for a robot car?

(A) 0.1%
(B) 0.2%
(C) 2%
(D) 20%
(E) 200%


Que: When P is divided by 2, is the remainder 1?

Que: When P is divided by 2, is the remainder 1?

(1) \(\left(-1\right)^{\left(P+2\right)}=1\)
(2) P is a prime.


Que: When P is divided by 2, is the remainder 1?

Que: When P is divided by 2, is the remainder 1?

(1) \(\left(-1\right)^{\left(P+2\right)}=1\)
(2) P is a prime.