q: The average of first 18 even numbers is?
Options:
(A) 19
(B) 18
(C) 16
(D) 11
(E) 17
a: Stream of consciousness: Sum of 18 even numbers = 18 * 19 = 342
Average = 342/18 = 19 The answer is (A).

question: Steve traveled the first 2 hours of his journey at 40 mph and the last 3 hours of his journey at 80 mph. What is his average speed of travel for the entire journey?
Options:
(A) 61mph
(B) 62mph
(C) 63mph
(D) 64mph
(E) 65mph
answer: Stream of consciousness: (2*40+3*80)/5 = 64mph The answer is (D).

q: If 40 per cent of a number is added to an other number then it becomes 125 per cent of itself. What will be the ratio of first and second numbers?
Options:
(A) 8 : 5
(B) 5 : 7
(C) 5 : 8
(D) Data inadequate
(E) None of these
a: Stream of consciousness: 40x100 + y = 125x100 xy = 2017 The answer is (E).

question: If 10 crates have 98 apples each and how many apples more is required in order to make 100 apples in each crate?
Options:
(A) 5
(B) 10
(C) 15
(D) 20
(E) 0
answer: Stream of consciousness: Each crate requires 2 apples and totally there are 10 crates so required apples = 10 * 2 = 20 The answer is (D).

q: If Rs.7500 are borrowed at C.I at the rate of 4% per annum, then after 2 years the amount to be paid is?
Options:
(A) 2287
(B) 2689
(C) 1667
(D) 8112
(E) 1691
a: Stream of consciousness: A = 7500(26/25)2 = 8112 The answer is (D).

q: One red flower, three white flowers and two blue flowers are arranged in a line such that
I. No two adjacent flowers are of the same colour.
II. The flowers at the two ends of the line are of different colours.
In how many different ways can the flowers be arranged?
Options:
(A) 6
(B) 4
(C) 10
(D) 12
(E) 14
a:
Stream of consciousness: The total possibilities are W@W@W@ (or) @W@W@W, where 2 blue and 1 red flowers occupy the space marked as @. Hence, the Total number of permutations is 2 x (3! / 2!) = 6. The answer is (A).