q: What is the are of an equilateral triangle of side 4 cm?
Options:
(A) 645
(B) 43
(C) 644
(D) 643
(E) 642
a: Stream of consciousness: Area of an equilateral triangle = 3/4 S2
If S = 4, Area of triangle = 3/4 * 4 * 4 = 43 cm2; The answer is (B).
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q: A 70 cm long wire is to be cut into two pieces so that one piece will be 2/5th of the other, how many centimeters will the shorter piece be?
Options:
(A) 20
(B) 99
(C) 88
(D) 77
(E) 66
a: Stream of consciousness: 1: 2/5 = 5: 2
2/7 * 70 = 20 The answer is (B).
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q: A, B, C together started a business. A invested Rs.6000 for 5 months B invested Rs.3600 for 6 months and C Rs.7500 for 3 months. If they get a total profit of Rs.7410. Find the share of B?
Options:
(A) 2160
(B) 3000
(C) 3018
(D) 3019
(E) 3012
a:
Stream of consciousness: 60*5:36*6:75*3
100: 72: 75
72/247 * 7410 = 2160 The answer is (A).
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