q: There are different 45 circles. What is the number of the greatest possible points with which the circles intersect?
Options:
(A) 1950
(B) 2000
(C) 1980
(D) 1580
(E) 2600
a: Stream of consciousness: Maximum points of intersection between n different circles = n*(n - 1) = 45*44 = 1980 The answer is (C).

question: The average of first 10 odd numbers is?
Options:
(A) 11
(B) 10
(C) 19
(D) 16
(E) 13
answer: Stream of consciousness: Sum of 10 odd no. = 100
Average = 100/10 = 10 The answer is (B).

q: Let the second number be 3x, so that the first number is 6x and the third number is 2x.
Options:
(A) 22
(B) 77
(C) 98
(D) 27
(E) 36
a: Stream of consciousness: 6x + 3x + 2x = 132 x = 12. Second number = 3x = 312 = 36. The answer is (E).

question: A racng car travels k kilometres in n hours. How many miles will it travel in x hours at the same rate?
Options:
(A) knx
(B) kn
(C) knx
(D) kx
(E) kxn
answer: Stream of consciousness: Given Speed = k/n
To Find distance in x hours with same speed
Distance = speed * time
Distance = k/n*x = kx/n The answer is (E).

q: If 4 women can color 48 m long cloth in 2 days, then 6 women can color 36 m long cloth in
Options:
(A) 2 days
(B) 1 day
(C) 4 days
(D) 3 days
(E) 2 1/5 days
a: Stream of consciousness: The length of cloth painted by one woman in one day = 48 / 4 2 = 6 m
No. of days required to paint 36 m cloth by 6 women = 36/ 6 6 = 1 day. The answer is (B).

q: The inverse ratio of 4: 2: 1 is?
Options:
(A) 2:4:8
(B) 2:3:9
(C) 2:3:2
(D) 2:3:6
(E) 2:3:1
a:
Stream of consciousness: 1/4: 1/2: 1/1 = 2:4:8 The answer is (A).