(Ans). (D)
(Question). What is the are of an equilateral triangle of side 14 cm?
Options:
(A) 663 cm2
(B) 743 cm2
(C) 643 cm2
(D) 493 cm2
(E) 143 cm2
(CoT). Area of an equilateral triangle = 3/4 S2
If S = 14, Area of triangle = 3/4 * 14 * 14 = 493 cm2;

(Ans). (D)
(Question). 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) 1227
(B) 2088
(C) 26788
(D) 8112
(E) 1871
(CoT). A = 7500(26/25)2 = 8112

(Ans). (B)
(Question). If the personal income tax rate is lowered from 46% to 32%, what is the differential savings for a tax payer having an annual income before tax to the tune of $36000?
Options:
(A) $3500
(B) $5040
(C) $3150
(D) $7000
(E) $10000
(CoT). Saving = (46-32)% of 36000 = 5040.

(Ans). (A)
(Question).
If A takes x days to do a work then B takes 2x days to do the same work then with in how many day's A will alone complete this work ?
Options:
(A) 27
(B) 23
(C) 24
(D) 25
(E) 26
(CoT). 1/x+1/2x = 1/18 = > 3/2x = 1/18 = > x = 27 days. Hence, A alone can finish the work in 27 days.