6.
The banker’s discount of a certain sum of money is Rs. 72 and the true discount on the same sum for the same time is Rs. 60. The sum due is:
A. Rs. 360 B. Rs. 432
C. Rs. 540 D. Rs. 1080
Answer & Explanation
Answer: Option A
Explanation:
Sum = B.D. x T.D. = Rs. 72 x 60 = Rs. 72 x 60 = Rs. 360.
B.D. – T.D. 72 – 60 12
7.
The certain worth of a certain sum due sometime hence is Rs. 1600 and the true discount is Rs. 160. The banker’s gain is:
A. Rs. 20 B. Rs. 24
C. Rs. 16 D. Rs. 12
Answer & Explanation
Answer: Option C
Explanation:
B.G. = (T.D.)2 = Rs. 160 x 160 = Rs. 16.
P.W. 1600
8.
The present worth of a certain bill due sometime hence is Rs. 800 and the true discount is Rs. 36. The banker’s discount is:
A. Rs. 37 B. Rs. 37.62
C. Rs. 34.38 D. Rs. 38.98
Answer & Explanation
Answer: Option B
Explanation:
B.G. = (T.D.)2 = Rs. 36 x 36 = Rs. 1.62
P.W. 800
B.D. = (T.D. + B.G.) = Rs. (36 + 1.62) = Rs. 37.62
m
9.
The banker’s gain on a bill due 1 year hence at 12% per annum is Rs. 6. The true discount is:
A. Rs. 72 B. Rs. 36
C. Rs. 54 D. Rs. 50
Answer & Explanation
Answer: Option D
Explanation:
T.D. = B.G. x 100 = Rs. 6 x 100 = Rs. 50.
R x T 12 x 1
10.
The banker’s gain on a certain sum due 1 1 years hence is 3 of the banker’s
2 25
discount. The rate percent is:
A.
5 1 %
5
B.
9 1 %
11
C.
8 1 %
8
D.
6 1 %
6
Answer & Explanation
Answer: Option B
Explanation:
Let, B.D = Re. 1.
Then, B.G. = Re. 3 .
25
T.D. = (B.D. – B.G.) = Re. 1 – 3 = Re. 22 .
25 25
Sum = 1 x (22/25) = Rs. 22 .
1-(22/25) 3
S.I. on Rs. 22 for 1 1 years is Re. 1.
3 2
Rate = 100 x 1 %
= 100 = 9 1 %.
11 11
22 x 3
3 2