Q: In how many different ways can the letters of the word "NEGLIGENCE" be rearrangement?
Options:
(A) 3628800
(B) 3628800
(C) 3628812
(D) 3428800
(E) 3368800
A: OK... Stream of consciousness: Option 'B'
The total number of arrangements is
10P10 = 10! = 3628800
The answer is (B).

Q: 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) 8112
(B) 8000
(C) 8500
(D) 7500
(E) 6500
A: OK... Stream of consciousness: A = 7500(26/25)2 = 8112
The answer is (A).

Q: Resident of town X participated in a survey to determine the number of hours per week each resident spent watching television. The distribution of the results of the survey had a mean of 21 hours and std deviation of 7 hrs. The number of hours that pat, a resident of town X, watched television last week was between 1 and 2 standard deviation below the mean. Which of the following could be the number of hours that Pat watched television last week?
Options:
(A) 30
(B) 20
(C) 18
(D) 12
(E) 6
A: OK... Stream of consciousness: 21-12 < no of hrs < 21-6
9< no of hrs < 14.
The answer is (D).

Q: Rs.800 amounts to Rs.920 in 3 years at simple interest. If the interest is increased by 3%, it would amount to how much?
Options:
(A) 3387
(B) 277
(C) 223
(D) 992
(E) 213
A:
OK... Stream of consciousness: (800*3*3)/100 = 72
920 + 72 = 992
The answer is (D).