q: If rupee one produces rupees nine over a period of 40 years, find the rate of simple interest?
Options:
(A) 22 1/8 %
(B) 22 3/2 %
(C) 28 1/2 %
(D) 22 1/2 %
(E) 32 1/2 %
a: OK... 9 = (1*40*R)/100
R = 22 1/2 %
The answer is (D).

q: If x, y, and z are positive integers such that x is divisible by y, and y is divisible by z, which of the following is NOT necessarily an integer?
Options:
(A) xy/z
(B) (x + y) /z
(C) xz/y
(D) (x - y) /z
(E) (x + z) /y
a: OK... As per the question, let x = 12, y = 6, and z = 2. Plugging these into the answer choices, only E does not yield an integer. The reason is that (x + z)/y = x/y + z/y, and while x/y must be an integer, z/y is only an integer if y = z.
The answer is (E).

q: Find the product of the localvalue and absolutevalue of 5 in 20568?
Options:
(A) 1000
(B) 2500
(C) 1200
(D) 5000
(E) 1600
a:
OK... Local value of 5 = 5 x 100 = 500
Place value of 5 = 5
There fore = 5 x 500 = 2500
The answer is (B).