Rationale: Principal = (100 * 5400) / (13 * 3) = Rs. 13846
The answer: (C)
Question: A man took loan from a bank at the rate of 13% p.a. S.I. After 3 years he had to pay Rs. 5400 interest only for the period. The principal amount borrowed by him was?
Options:
(A) Rs. 1846
(B) Rs. 18846
(C) Rs. 13846
(D) Rs. 2000
(E) Rs. 14846

Rationale: Money paid in cash = Rs. 2500
Balance payment = (40000- 2500) = Rs. 37500.
The answer: (D)
Question: The price of a T.V. set worth Rs. 40000 is to be paid in 20 installments of Rs. 2500 each. If the rate of interest be 6% per annum, and the first installment be paid at the time of purchase, then the value of the last installment covering the interest as well will be?
Options:
(A) 29997
(B) 28088
(C) 27098
(D) 37500
(E) 2799

Rationale: The total of seven numbers = 7X4 = 28
The total of first 3 and last 3 numbers is = 3 X 2+3 X 6 = 24
So, the middle number is (28 - 24 ) = 4
The answer: (B)
Question: The average of seven numbers is 4. The average of first three numbers is 2 and the average of last three numbers is 6. What is the middle number?
Options:
(A) 3
(B) 4
(C) 6
(D) 7
(E) 8