DS-Arithmetic

DS Questions from Arithmetic

How much revenue did an author
Concept: The question is a word problem expressed as a DS question Solution To answer this, we require (a) either the number of books sold at full price o...
Tue, 12 Oct, 2021 at 4:47 PM
A certain restaurant regularly orders tomatoes, pasta, and cheese
Concept: The question tests on the area of Probability Solution: Given t = k1 * p p = k2 * c If t = 150, then what is c. Integrating the 2 statements ...
Tue, 12 Oct, 2021 at 4:48 PM
Last year, Jill spent $2000 on clothes.
Concept: The question tests on the application in Percentage problem in a DS format Solution: Jills expenditure on clothes = 2000 and on shoes = 1/2 of th...
Tue, 12 Oct, 2021 at 4:48 PM
A clothing manufacturer makes jackets that are wool
Concept: The question tests on Arithmetic through a DS question Solution: From Statement(1) ALONE we can deduce that 3000/4=750 wool jackets but we are...
Tue, 12 Oct, 2021 at 4:48 PM
Is the integer n a multiple of 140?
Concept: The question tests on Number properties Solution:  Is n a multiple of 140. i.e is n = 140, 280, 420 .... Statement 1: n is a multiple of 10 n = ...
Tue, 12 Oct, 2021 at 4:48 PM
How many days would have it taken Jack to complete the entire job working alone
St (1)- M=20 -Gives us no information of Jack or of R (Insufficient) St(2)- R=10 -Gives us no information of Jack. Mac- (Clearly Insufficient) Combinin...
Tue, 12 Oct, 2021 at 4:48 PM
In a recent trip, Morris drove from town A
Concept: The question tests on the basics of Rates(Time and Speed) Solution: Average speed over 2 equal distances traveled at speeds a and b is = 2aba+b2a...
Tue, 12 Oct, 2021 at 4:49 PM
If x, y and z are integers and xy + z is an odd integer, is x an even
Concept: The questions tests on basics of Number Properties Solution: We need to remember that, in such questions the GMAT expects you to use a mathematic...
Tue, 12 Oct, 2021 at 4:50 PM
The positive integer k has exactly two positive prime factors, 3 and 7. If k has a total of 6 positive factors
Concept: The question tests on Number Properties(Factors) Solution: This question is a great candidate for the “Break down the question statement” strateg...
Tue, 12 Oct, 2021 at 4:50 PM
For all integers a and b, where b ≠ 0, subtracting b from a must
Concept: The question tests on Arithmetic(Number Properties) Solution: The best way to find out is by using the options. We will try to put values to sati...
Tue, 12 Oct, 2021 at 4:50 PM