Q: How much 60% of 50 is greater than 40% of 30?
Options:
(A) 18
(B) 91
(C) 11
(D) 17
(E) 12
A: OK... Stream of consciousness: (60/100) * 50 (40/100) * 30
30 - 12 = 18
The answer is (A).

Q: Find the wrong number below mentioned series
5,24,60,120,210,340
Options:
(A) 340
(B) 210
(C) 5
(D) 60
(E) none
A: OK... Stream of consciousness: 5 is the only prime number or odd number in the series.
The answer is (C).

Q: A owner of a mart earns an income of Re 1 on the first day of his business. On every subsequent day, he earns an income which is just double of that made on the previous day. On the 10th day of business, he earns an income of:
Options:
(A) 18
(B) 21
(C) 22
(D) 20
(E) 30
A: OK... Stream of consciousness: 2nd day he earns = 2(2 1)
3rd day he earns = 2(3 1)
On 10th day he earns 2(10 -1) = 18 rupees
The answer is (A).

Q: Solve below question 6x - 1 = -13
Options:
(A) -8
(B) -2
(C) -5
(D) -4
(E) 1
A:
OK... Stream of consciousness: 1. Subtract 1 from both sides: 6x - 1 + 1 = -13 + 1 2. Simplify both sides: 6x = -12 3. Divide both sides by 6: 4. Simplify both sides: x = -2
The answer is (B).