PS-Modern Math/Stats
PS Questions from Modern Math/Stats
Concept: The question tests on application of Combination Solution: We can start with either the arts or the science students. Suppose we start with the...
Tue, 12 Oct, 2021 at 4:32 PM
Concept: The question tests on application of Mixtures Solution: 4 gallons of 90% glycerine contains 0.9 * 4 = 3.6 gallons of glycerine and 0.4 gallons o...
Tue, 12 Oct, 2021 at 4:32 PM
Concept: The question tests on Combinatorics Solution: nPr=n!/(n−r)! 6 seats to arrange 5 people = 6Pr=6!(6−5)!=6!=720 Option D
Tue, 12 Oct, 2021 at 4:32 PM
Concept: The question tests on Combinatorics Solution: We can use either the box method or by using the equation for arrangements. The number of ways of...
Tue, 12 Oct, 2021 at 4:33 PM
Concept: The question tests on Overlapping sets Solution: By set theory, Total = Only A + Only B + Only C + (Only A and B) + (Only A and C) + (Only B ...
Tue, 12 Oct, 2021 at 4:33 PM
Concept: The question tests on basic Table Analysis (using percentage) Solution: The number of Matches Produced in Oregon in 1980 = 17% of 1.2 B Let the...
Tue, 12 Oct, 2021 at 4:33 PM
Concept: The question tests on Coordinate Geometry Solution: Method 1: This can be done by eliminating options. Take the 1st pair (1, -1) so when x = 1,...
Tue, 12 Oct, 2021 at 4:33 PM
Concept: The question tests on basics in statistics Solution: For such questions, assuming values/plugging in is the best approach that can give accura...
Tue, 12 Oct, 2021 at 4:33 PM
Concept: The question tests on Alligation Solution: By the rule of alligations, Q1/Q2=P2−P/P−P1 Where Q1 and Q2 are the quantities of the cheaper and cos...
Tue, 12 Oct, 2021 at 4:33 PM
Concept: The question tests on Functions Solution: The function will be undefined if we get the square root of a negative number. x^2−5x+6=x^2−2x−3x+6=x...
Tue, 12 Oct, 2021 at 4:33 PM