TNPSC Quantitative Aptitude - Simple Interest
Exam Duration: 45 Mins Total Questions : 30
What will be the simple interest earned on an amount of Rs.16,800 in 9 months at the rate of 6\(1\over4\)% p.a.?
- (a)
Rs.787.50
- (b)
Rs.812.50
- (c)
Rs.860
- (d)
Rs.887.50
A person borrows Rs.5000 for 2 years at 4% p.a. simple interest. He immediately lends it to another person at 6\(1\over4\)% p.a. for 2 years. Find his gain in the transaction per year.
- (a)
Rs.112.50
- (b)
Rs.125
- (c)
Rs.150
- (d)
167.50
A sum of Rs.1600 gives a simple interest of Rs.252 in 2 years and 4 months. The rate of interest per annum is :
- (a)
6%
- (b)
6\(1\over4\)%
- (c)
6\(1\over2\)%
- (d)
6\(3\over4\)%
What is the present worth of Rs.132 due in 2 years at 5% simple interest per annum ?
- (a)
Rs.112
- (b)
Rs.118.80
- (c)
Rs.120
- (d)
Rs.122
In how many years, Rs.150 will produce the same interest @ 8% as Rs. 800 produce in 3 years @ 4 \(1\over2\)% ?
- (a)
6
- (b)
8
- (c)
9
- (d)
12
If Rs.64 amounts to Rs.83.20 in 2years, what will Rs.86 amount to in 4 years at the same rate percent per annum ?
- (a)
Rs.114.80
- (b)
Rs.124.70
- (c)
Rs.127.40
- (d)
Rs.137.60
The simple interest on a certain sum of money at the rate of 5% p.a. for 8 years is Rs.840. At what rate of interest the same amount of interest can be received on the same sum after 5 years ?
- (a)
6%
- (b)
8%
- (c)
9%
- (d)
10%
The interest on a certain deposit at 4.5% p.a. is Rs.202.50 in one year. How much will the additional interest in one year be on the same deposit at 5% p.a. ?
- (a)
Rs.20.25
- (b)
Rs.22.50
- (c)
Rs.25
- (d)
Rs.42.75
Nitin borrowed some money at the rate of 6% p.a. for the first three years, 9% p.a. for the next five years and 13 % p.a. for the period beyond eight years. If the total interest paid by him at the end of eleven years is Rs.8160, how much money did he borrow?
- (a)
Rs.8000
- (b)
Rs.10,000
- (c)
Rs.12,000
- (d)
Data inadequate
- (e)
None of these
The simple interest on Rs.10 for 4 months at the rate of 3 paise per rupee per month is :
- (a)
Rs.1.20
- (b)
Rs.1.60
- (c)
Rs.2.40
- (d)
Rs.3.60
The rate at which a sum becomes four times of itself in 15 years at S.I., will be
- (a)
15%
- (b)
17\(1\over2\)%
- (c)
20%
- (d)
25%
If a sum of money at simple interest doubles in 6 years, it will become 4 times in :
- (a)
12 years
- (b)
14 years
- (c)
16 years
- (d)
18 years
Consider the following statements:
If a sum of money is lent at simple interest, then the
1. money gets doubled in 5 years if the rate of interest is 16\(2\over3\)%
2. money gets doubles in 5 yeats if the rate of interest is 20%.
3. money becomes four times in 10 years if it gets double in 5 years. Of these statements,
- (a)
1 and 3 are correct
- (b)
2 alone is correct
- (c)
3 alone is correct
- (d)
2 and 3 are correct
How long will it take a sum of money invested at 5% p.a. S.I. to increase its value by 40% ?
- (a)
5 years
- (b)
6 years
- (c)
7 years
- (d)
8 years
A lends Rs. 2500 to B and certain sum to C at the same time at 7% p.a. simple interest. If after 4 years, A altogether receiver Rs. 1120 as interest from B and C, then the sum lent to C is :
- (a)
Rs. 700
- (b)
Rs. 1500
- (c)
Rs. 4000
- (d)
Rs. 6500
A lent Rs. 5000 to B for 2 years and Rs. 3000 to C for 4 years on simple interest at the same rate of interest and received Rs. 2200 in ali from both of them as interest. The rate of interest per annum is :
- (a)
5%
- (b)
7%
- (c)
7\(1\over8\)%
- (d)
10%
A sum of Rs. 725 is lent in the beginning of a year at a certain rate of interest. After 8 months, a sum of Rs. 362.50 more is lent but at the rate twice the former. At the end of the year, Rs. 33.50 is earned as interest from both the loans. What was the original rate of interest ?
- (a)
3.6%
- (b)
4.5%
- (c)
5%
- (d)
6%
- (e)
None of these
Peter invested an amount of Rs. 12,000 at the rate of 10 p.c.p.a. simple interest and another amount at the rate of 20 p.c.p.a. simple interest. The total interest earned at the end of one year on the total amount invested became 14 p.c.p.a. Find the total amount invested.
- (a)
Rs. 20,000
- (b)
Rs. 22,000
- (c)
Rs. 24,000
- (d)
Rs. 25,000
- (e)
None of these
If the annual rate of simple interest increases from 10 % to 12\(1\over2\)%, a man's yearly income increases by Rs. 1250. HIs principal (in Rs. ) is:
- (a)
45,000
- (b)
50,000
- (c)
60,000
- (d)
65,000
A moneylender finds that due to a fall in the annual rate of interest from 8% to 7\(3\over4\)%, his yearly income diminishes by Rs. 61.50. His capital is :
- (a)
Rs. 22,400
- (b)
Rs. 23,800
- (c)
Rs. 24,600
- (d)
Rs. 26,000
A sum of Rs.10 is lent to be retured in 11 montly instalments of Re. 1 each, interest being simple. The rate of interest is :
- (a)
9\(1\over11\)%
- (b)
10%
- (c)
11%
- (d)
21\(9\over11\)%
The price of a T.V set worth Rs. 20,000 is to be paid in 20 instalments of Rs. 1000 each. If the rate of interest be 6% per annum, and the first instalment be paid at the time of purchase, then the value of the last instalment covering the interest as well will be :
- (a)
Rs. 1050
- (b)
Rs. 2050
- (c)
Rs. 3000
- (d)
None of these
A man lends Rs. 10,000 in four parts. If he gets 8% on Rs. 2000; 7\(1\over2\)% on Rs. 4000 and 8\(1\over2\)% on Rs.1400; what percent must he get for the remainder, if his average annual interest is 8.13% ?
- (a)
7%
- (b)
9%
- (c)
9\(1\over4\)%
- (d)
10\(1\over2\)%
An amount of Rs. 1,00,000 is invested in two types of shares. The first yields an interest of 9% p.a. and the secound, 11% p.a. If the total interest at the end of one year is 9\(3\over4\)%, then the amount invested in each share was :
- (a)
Rs. 52,500; Rs. 47,500
- (b)
Rs. 62,500; Rs. 37,500
- (c)
Rs. 72,500; Rs. 27,500
- (d)
Rs. 82,500; Rs. 17,500
Divide Rs. 2379 into 3 parts so that their amounts after 2, 3 and 4 years respectively may be equal, the rate of interest being 5% per annum at simple interest. The first part is :
- (a)
Rs. 759
- (b)
Rs. 792
- (c)
Rs. 818
- (d)
Rs. 828
What is the rate of simple interest ?
I. The total interest earned was Rs. 4000.
II. The sum was invested for 4 years.
- (a)
if the data in Statement I alone are sufficient to answer the question, while the data in Statement II alone are not sufficient to answer the question
- (b)
if the data in Statement II alone are sufficient to answer the question, while the data in Statement I alone are not sufficient to answer the question
- (c)
if the data either in Statement I or in Statement II alone are sufficient to answer the question
- (d)
if the data in both Statement I and II together are not sufficient to answer the question
- (e)
if the data in both Statement I and II together are necessary to answer the question
The simple interest on a sum of money is Rs. 50. What is the sum ?
I. The interest rate is 10% p.a.
II. The sum earned simple interest in 10 years.
- (a)
if the data in Statement I alone are sufficient to answer the question, while the data in Statement II alone are not sufficient to answer the question
- (b)
if the data in Statement II alone are sufficient to answer the question, while the data in Statement I alone are not sufficient to answer the question
- (c)
if the data either in Statement I or in Statement II alone are sufficient to answer the question
- (d)
if the data in both Statement I and II together are not sufficient to answer the question
- (e)
if the data in both Statement I and II together are necessary to answer the question
What percentage of simple interest per annum did Anand pay to Deepak ?
I. Anand borrowed Rs. 8000 for Deepak for four years.
II. Anand returned Rs. 8800 to Deepak at the end of two years and settled the loan.
- (a)
if the data in Statement I alone are sufficient to answer the question, while the data in Statement II alone are not sufficient to answer the question
- (b)
if the data in Statement II alone are sufficient to answer the question, while the data in Statement I alone are not sufficient to answer the question
- (c)
if the data either in Statement I or in Statement II alone are sufficient to answer the question
- (d)
if the data in both Statement I and II together are not sufficient to answer the question
- (e)
if the data in both Statement I and II together are necessary to answer the question
A man borrowed a total sum of Rs. 24000 from two moneylenders. For one loan, he paid interest @ 7\(1\over2\)% p.a. and for the other 9% p.a. How many did he borrow at each rate ?
I. The sum of the interests after one year was Rs. 2025.
II. The interest on one sum was twice that on the other.
- (a)
if the data in Statement I alone are sufficient to answer the question, while the data in Statement II alone are not sufficient to answer the question
- (b)
if the data in Statement II alone are sufficient to answer the question, while the data in Statement I alone are not sufficient to answer the question
- (c)
if the data either in Statement I or in Statement II alone are sufficient to answer the question
- (d)
if the data in both Statement I and II together are not sufficient to answer the question
- (e)
if the data in both Statement I and II together are necessary to answer the question
What is the sum which earned interest ?
I. The total simple interest was Rs. 7000 after 7 years.
II. The total of sum and simple interest was double of the sum after 5 years.
- (a)
if the data in Statement I alone are sufficient to answer the question, while the data in Statement II alone are not sufficient to answer the question
- (b)
if the data in Statement II alone are sufficient to answer the question, while the data in Statement I alone are not sufficient to answer the question
- (c)
if the data either in Statement I or in Statement II alone are sufficient to answer the question
- (d)
if the data in both Statement I and II together are not sufficient to answer the question
- (e)
if the data in both Statement I and II together are necessary to answer the question