# Quantitative Aptitude – Modern Maths – Set Theory – If A = {6^2n -35n -1: n = 1,2,3,…}

December 23rd, 2019 by

Quantitative Aptitude – Modern Maths - Set Theory – If A = {6^2n -35n -1: n = 1,2,3,...} Slot -2 – Quantitative Aptitude – Modern Maths - Set Theory – If A = {6^2n -35n -1: n = 1,2,3,...}  If A = {6^2n -35n -1: n = 1,2,3,...} and B = {35(n-1) : n = 1,2,3,...} then which of the following is true? a) Neither every member of A is in B nor every member of B is in A b) Every member of A is in B and at least one member of B is not in A c) Every member of B is in A. d) At least one member of A is not in B Answer: b)

# Quantitative Aptitude – Modern Maths – Set Theory – For two sets A and B, let AΔB

December 23rd, 2019 by

Quantitative Aptitude – Modern Maths - Set Theory – For two sets A and B, let AΔB Slot -2 – Quantitative Aptitude – Modern Maths - Set Theory – For two sets A and B, let AΔB For two sets A and B, let AΔB denote the set of elements which belong to A or B but not both. If P = {1,2,3,4}, Q = {2,3,5,6,}, R = {1,3,7,8,9}, S = {2,4,9,10}, then the number of elements in (PΔQ)Δ(RΔS) is? a) 7 b) 8 c) 9 d) 6 Answer: a) 7 Solution: Given, P = {1,2,3,4}, Q = {2,3,5,6,}, R = {1,3,7,8,9}, S = {2,4,9,10} So (PΔQ)

# Quantitative Aptitude – Modern Maths – Set Theory – Each of 74 students in a class studies

December 21st, 2019 by

Quantitative Aptitude – Modern Maths - Set Theory – Each of 74 students in a class studies Slot -1 – Quantitative Aptitude – Modern Maths - Set Theory – Each of 74 students in a class studies Each of 74 students in a class studies at least one of the three subjects H, E and P. Ten students study all three subjects, while twenty study H and E, but not P. Every student who studies P also studies H or E or both. If the number of students studying H equals that studying E, then the number of students studying H is? Answer : 52