11.
The present worth of a sum due sometime hence is Rs. 576 and the banker’s gain is Rs. 16. The true discount is:
A. Rs. 36 B. Rs. 72
C. Rs. 48 D. Rs. 96
Answer & Explanation
Answer: Option D
Explanation:
T.D. = P.W. x B.G. = 576 x 16 = 96.
12.
The true discount on a bill of Rs. 540 is Rs. 90. The banker’s discount is:
A. Rs. 60 B. Rs. 108
C. Rs. 110 D. Rs. 112
Answer & Explanation
Answer: Option B
Explanation:
P.W. = Rs. (540 – 90) = Rs. 450.
S.I. on Rs. 450 = Rs. 90.
S.I. on Rs. 540 = Rs. 90 x 540 = Rs. 108.
450
B.D. = Rs. 108.
13.
The banker’s discount on a certain sum due 2 years hence is 11 of the true discount.
10
The rate percent is:
A. 11% B. 10%
C. 5% D. 5.5%
Answer & Explanation
Answer: Option C
Explanation:
Let T.D. be Re. 1.
Then, B.D. = Rs. 11 = Rs. 1.10.
10
Sum = Rs. 1.10 x 1 = Rs. 110 = Rs. 11.
1.10 – 1 10
S.I. on Rs. 11 for 2 years is Rs. 1.10
Rate = 100 x 1.10 % = 5%.
11 x 2