There are 24 distinct numbers in set M, there are 28 distinct numbers in set N, and there are 12 distinct numbers that are in both sets M and N. Set H is the set containing the elements that are in at least one of sets M and N. How many elements are in set H?
Options:
(A) 39
(B) 40
(C) 51
(D) 58
(E) 63

{Total} = {M} + {N} - {Both}
{Total} = 24 + 28 - 12 = 40. So the answer is: (B).

Rs.500 amounts to Rs.620 in 2 years at simple interest. If the interest is increased by 2%, it would amount to how much?
Options:
(A) 120
(B) 25
(C) 614
(D) 530
(E) 210

(500*3*2)/100 = 30
500+ 30 = 530 So the answer is: (D).

what is the next no. 4 12 84
Options:
(A) 632
(B) 732
(C) 832
(D) 850
(E) 902

3^0 + 3 = 4
3^2 + 3 = 12
3^4 + 3 = 84
3^6 + 3 = 732 So the answer is: (B).

Ten telegenic contestants with a variety of personality disorders are to be divided into two “tribes” of three members each, tribe A and tribe B, for a competition. How many distinct groupings of two tribes are possible?
Options:
(A) 120
(B) 126
(C) 252
(D) 1200
(E) 1260


My ans is 10C3 = 120 So the answer is: (A).