Og questions-PS

All PS questions from specifically OG 2021 (All modules)

If (1/3+1/4+1/5+1/6)=r(1/9+1/12+1/15+1/18)
Concept: The question tests on the basics of Algebra Solution:   1/3+1/4+1/5+1/6 =r (1/9+1/12+1/15+1/18) =>1/3+1/4+1/5+1/6 =r∗1/3(1/3+1/4+1/5+1/6) (...
Wed, 13 Oct, 2021 at 11:28 AM
If x and y are positive integers such that y is a multiple of 5
Concept: The question tests on the basics of Number Properties Solution: Given 3x = 200 -4y => 3x = Difference of even numbers = even => As 3 is o...
Wed, 13 Oct, 2021 at 11:29 AM
Which of the following expressions can be written as an integer?
Concept: The question tests on the basics of Number Properties Solution:  We can easily and immediately observe III to be = 82/82 =1 (Eliminate A,B,D) I ...
Wed, 13 Oct, 2021 at 11:29 AM
If x^2 − 2 < 0, which of the following specifies all the possible values of x?
Concept: The question tests on basics of Inequalities Solution: x^2 − 2 < 0 => x^2 < 2 If x is positive then x < √2 If x is negative then -...
Wed, 13 Oct, 2021 at 11:29 AM
In the xy-coordinate plane, which of the following points
Concept: The question tests on basics of Coordinate Geometry Solution:   To "must lie" for "every value of k", on the line the k term ...
Wed, 13 Oct, 2021 at 11:29 AM
Pumping alone at their respective constant rates
Concept: The question tests on basics of Rates(Time and Work) Solution:   First pipe - Fills 1/2 tank in 3 hours =>1 full tank in 6 hours Second pipe-...
Wed, 13 Oct, 2021 at 11:29 AM
Shawana made a schedule for reading books during 4 weeks (28 days)
Concept: The question tests on Word Problem and Analytical reasoning Solution:   Given, Shawana reads 50 pages/day, and she will never begin the next book...
Wed, 13 Oct, 2021 at 11:32 AM
In western Europe, x bicycles were sold in each of the
Concept: The question tests on the ability to solve a Word Problem Solution: 1990-Bicycles produced= 0.42x 1993-Bicycles produced=0.33x Bicycles were so...
Wed, 13 Oct, 2021 at 11:32 AM
From the consecutive integers -10 to 10 inclusive, 20 integers are randomly
Concept: The question deals with Max/Min Concept. Solution: The integers are    -10,-9,-8,-7,-6,-5,-4,-3,-2-1                                      ...
Wed, 13 Oct, 2021 at 11:32 AM
Solution Y is 30 percent liquid X and 70 percent water
Concept: The question tests on Percentage and comprehension of question and its inputs. Solution Y:         Liquid X =30%    AND   Water = 70%      ...
Wed, 13 Oct, 2021 at 11:32 AM