6, 9, 15, 21, 24, 28, 30
Question:
6, 9, 15, 21, 24, 28, 30
[A].
28
21
24
30
6, 9, 15, 21, 24, 28, 30
[A].
[B].
[C].
[D].
Answer: Option A
Explanation:
Each of the numbers except 28, is a multiple of 3.
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The S.I. on a certain sum of money for 3 years at 8% per annum is half the C.I. on Rs. 4000 for 2 years at 10% per annum. The sum placed on S.I. is________?
The S.I. on a certain sum of money for 3 years at 8% per annum is half the C.I. on Rs. 4000 for 2 years at 10% per annum. The sum placed on S.I. is________?A. Rs. 1550
B. Rs. 1650
C. Rs. 1750
D. Rs. 2000
Explanation:
C.I. = [4000 * (1 + 10/100)2 – 4000]
= (4000 * 11/10 * 11/10 – 4000) = Rs. 840.
Sum = (420 * 100)/(3 * 8) = Rs. 1750If one-third of one-fourth of a number is 15, then three-tenth of that number is:
Question: If one-third of one-fourth of a number is 15, then three-tenth of that number is:
[A].35 [B].
36 [C].
45 [D].
54 Answer: Option D
Explanation:
Let the number be x.
Then, 1 of 1 of x = 15 x = 15 x 3 x 4 = 180. 3 4 So, required number = 3 x 180 = 54. 10 Video Explanation: https://youtu.be/z49OUnzTnwY
The difference between simple and compound interests compounded annually on a certain sum of money for 2 years at 4% per annum is Re. 1. The sum (in Rs.) is:
Question:
The difference between simple and compound interests compounded annually on a certain sum of money for 2 years at 4% per annum is Re. 1. The sum (in Rs.) is:
[A].625 [B].
630 [C].
640 [D].
650 Answer: Option A
Explanation:
Let the sum be Rs. x. Then,
C.I. = x 1 + 4 2 – x = 676 x – x = 51 x. 100 625 625 S.I. = x x 4 x 2 = 2x . 100 25 51x – 2x = 1 625 25 x = 625.
What is the difference between the compound interests on Rs. 5000 for 1 years at 4% per annum compounded yearly and half-yearly?
Question: What is the difference between the compound interests on Rs. 5000 for 1 years at 4% per annum compounded yearly and half-yearly?
[A].Rs. 2.04 [B].
Rs. 3.06 [C].
Rs. 4.80 [D].
Rs. 8.30 Answer: Option A
Explanation:
C.I. when interest
compounded yearly= Rs. 5000 x 1 + 4 x 1 + x 4 100 100 = Rs. 5000 x 26 x 51 25 50 = Rs. 5304. C.I. when interest is
compounded half-yearly= Rs. 5000 x 1 + 2 3 100 = Rs. 5000 x 51 x 51 x 51 50 50 50 = Rs. 5306.04 Difference = Rs. (5306.04 – 5304) = Rs. 2.04
Find the amount on Rs.8000 in 9 months at 20% per annum, if the interest being compounded quarterly?
Find the amount on Rs.8000 in 9 months at 20% per annum, if the interest being compounded quarterly?A. Rs.1261
B. Rs.9261
C. Rs.9621
D. Rs.9162
Explanation:
A = 8000(21/20)3 = 9261The banker’s gain on a sum due 3 years hence at 12% per annum is Rs. 270. The banker’s discount is:
Question:
The banker’s gain on a sum due 3 years hence at 12% per annum is Rs. 270. The banker’s discount is:
[A].Rs. 960 [B].
Rs. 840 [C].
Rs. 1020 [D].
Rs. 760 Answer: Option C
Explanation:
T.D. = B.G. x 100 = Rs. 270 x 100 = Rs. 750. R x T 12 x 3 B.D. = Rs.(750 + 270) = Rs. 1020.