q: The area of a triangle is with base 10m and height 5m?
Options:
(A) 11
(B) 25
(C) 787
(D) 122
(E) 12
a: Stream of consciousness: 1/2 * 10 * 5 = 25 m2 The answer is (B).

question: The price of a T.V. set worth Rs. 40000 is to be paid in 20 installments of Rs. 2500 each. If the rate of interest be 6% per annum, and the first installment be paid at the time of purchase, then the value of the last installment covering the interest as well will be?
Options:
(A) 29997
(B) 28088
(C) 27098
(D) 37500
(E) 2799
answer: Stream of consciousness: Money paid in cash = Rs. 2500
Balance payment = (40000- 2500) = Rs. 37500. The answer is (D).

q: The area of a triangle is with base 12m and height 5m?
Options:
(A) 88 m2
(B) 30 m2
(C) 66 m2
(D) 77 m2
(E) 31 m2
a: Stream of consciousness: 1/2 * 12 * 5 = 30 m2 The answer is (B).

question: Find the average of the first 19 natural numbers?
Options:
(A) 8
(B) 9
(C) 10
(D) 11
(E) 12
answer: Stream of consciousness: Average of the first 'n' natural numbers = (n + 1)/2
We get (19 + 1)/2 = 10 The answer is (C).

q: What is the maximum number of pieces of birthday cake of size 5" by 5" that can be cut from a cake 15" by 15"?
Options:
(A) 5
(B) 10
(C) 16
(D) 20
(E) 9
a: Stream of consciousness: The prompt is essentially asking for the maximum number of 5 x 5 squares that can be cut from a larger 15 by 15 square. Since each 'row' and each 'column' of the larger square can be sub-divided into 3 'pieces' each, we have (3)(3) = 9 total smaller squares (at maximum). The answer is (E).

q: A single discount equivalent to the discount series of 20%, 10% and 25% is?
Options:
(A) 31.9
(B) 31.7
(C) 31.6
(D) 31.5
(E) 46
a:
Stream of consciousness: 100*(80/100)*(90/100)*(75/100) = 54
100 - 54 = 46 The answer is (E).