{"id":39851,"date":"2020-01-02T18:36:20","date_gmt":"2020-01-02T13:06:20","guid":{"rendered":"https:\/\/cracku.in\/blog\/?p=39851"},"modified":"2020-01-02T18:36:20","modified_gmt":"2020-01-02T13:06:20","slug":"simple-and-compound-interest-questions-for-rrb-ntpc-set-4","status":"publish","type":"post","link":"https:\/\/cracku.in\/blog\/simple-and-compound-interest-questions-for-rrb-ntpc-set-4\/","title":{"rendered":"Simple and Compound Interest Questions for RRB NTPC Set-4"},"content":{"rendered":"

Simple and Compound Interest Questions for RRB NTPC Set-4<\/strong><\/span><\/h3>\n

Download RRB NTPC Simple and Compound Interest Questions Set-4 PDF. Top 10 RRB NTPC questions based on asked questions in previous exam papers very important for the Railway NTPC exam.<\/p>\n

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Question 1:\u00a0<\/b>The simple interest at the rate of 8% on the amount Rs. 20,000 for 3 months is<\/p>\n

a)\u00a0400<\/p>\n

b)\u00a0600<\/p>\n

c)\u00a0500<\/p>\n

d)\u00a0200<\/p>\n

Question 2:\u00a0<\/b>A certain amount which was loaned on simple interest doubled in 10 years Then the amount received is loaned on compound interest for another 2 years on the same rate What is the total rise in the amount after 12 years with the initial principal amount ?<\/p>\n

a)\u00a042%<\/p>\n

b)\u00a0142%<\/p>\n

c)\u00a0242%<\/p>\n

d)\u00a0150%<\/p>\n

Question 3:\u00a0<\/b>One-fourth of an amount was loaned at simple interest with 2% rate of interest and the remaining part was lent on simple interest at 3% rate of interest What is the average rate of interest for the whole amount ?<\/p>\n

a)\u00a0$2\\frac{1}{4}\\%$<\/p>\n

b)\u00a0$2\\frac{3}{4}\\%$<\/p>\n

c)\u00a0$1\\frac{1}{4}\\%$<\/p>\n

d)\u00a0$4\\%$<\/p>\n

Question 4:\u00a0<\/b>The simple interest on a certain sum at the rate of 4% per annum in 4 years is Rs. 80 more than the simple interest on the same sum at 5% per annum after 3 years. The sum is<\/p>\n

a)\u00a0Rs. 7000<\/p>\n

b)\u00a0Rs. 7,500<\/p>\n

c)\u00a0Rs. 8000<\/p>\n

d)\u00a0Rs. 8,500<\/p>\n

Question 5:\u00a0<\/b>Find the simple interest on \u20b9 4800 at the rate of $8 \\frac{1}{2}$% per annum for a period of 2 years 3 months.<\/p>\n

a)\u00a0\u20b9 796<\/p>\n

b)\u00a0\u20b9 816<\/p>\n

c)\u00a0\u20b9 918<\/p>\n

d)\u00a0\u20b9 990<\/p>\n

RRB NTPC Previous Papers [Download PDF]<\/a><\/p>\n

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Question 6:\u00a0<\/b>What is the difference between Compound Interest and Simple Interest on Rs.1000 at 10% after 4 years?<\/p>\n

a)\u00a0Rs.64.10<\/p>\n

b)\u00a0Rs.74<\/p>\n

c)\u00a0Rs.16.40<\/p>\n

d)\u00a0Rs.52<\/p>\n

Question 7:\u00a0<\/b>The Compound Interest on a certain sum for 2 years at 10% is Rs.2100. What will be the Simple Interest for the same period, on the same sum and at the same rate?<\/p>\n

a)\u00a0Rs.2000<\/p>\n

b)\u00a0Rs.1600<\/p>\n

c)\u00a0Rs.1800<\/p>\n

d)\u00a0Rs.1980<\/p>\n

Question 8:\u00a0<\/b>Find the difference between the Simple Interest and Compound Interest on Rs.10000 for 3 years at the rate of 3% per annum.<\/p>\n

a)\u00a0Rs.27.27<\/p>\n

b)\u00a0Rs.17.82<\/p>\n

c)\u00a0Rs.21.54<\/p>\n

d)\u00a0Rs.16.25<\/p>\n

Question 9:\u00a0<\/b>Compound Interest and Simple Interest on a certain sum of money for 2 years is Rs.282.15 and Rs.270 respectively. The rate of interest is:<\/p>\n

a)\u00a06$\\frac{2}{3}$%<\/p>\n

b)\u00a011%<\/p>\n

c)\u00a09%<\/p>\n

d)\u00a08$\\frac{1}{3}$%<\/p>\n

Question 10:\u00a0<\/b>On a sum of money, the Simple Interest for 2 years is Rs.660 while the Compound Interest for two years is Rs.696.30, the rate of interest being the same. Find the rate of interest.<\/p>\n

a)\u00a010%<\/p>\n

b)\u00a012.75%<\/p>\n

c)\u00a011%<\/p>\n

d)\u00a013%<\/p>\n

Download General Science Notes PDF<\/a><\/p>\n

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Answers & Solutions:<\/strong><\/span><\/p>\n

1)\u00a0Answer\u00a0(A)<\/strong><\/p>\n

S.I=P x r x t\/100 , t in years<\/p>\n

=(20,000 x 8 x 3)\/( 100 x 12)=400<\/p>\n

2)\u00a0Answer\u00a0(B)<\/strong><\/p>\n

The amount doubled in 10 years. So, the interest = principle.<\/p>\n

So, rt\/100 = 1<\/p>\n

r = 10% pa<\/p>\n

Now compound interest = ?<\/p>\n

2P $(1 + .1) ^ {2}$ \u00a0= 2P x 1.21 = 2.42P<\/p>\n

Total rise is P to 2.42P = rise of 142%<\/p>\n

3)\u00a0Answer\u00a0(B)<\/strong><\/p>\n

Let the amount be 100 Rs.<\/p>\n

One fourth of it is at 2 % pa<\/p>\n

So, 25 x 2 x 1 \/100 = .5<\/p>\n

The rest is on 3% pa interest.<\/p>\n

So, 75 x 3 x 1 \/100 = 2.25<\/p>\n

So total interest = 2.75<\/p>\n

Interest rate = ?<\/p>\n

Interest rate = i x 100\/ pt<\/p>\n

= 2.75 x100\/100 = 2.75%<\/p>\n

4)\u00a0Answer\u00a0(C)<\/strong><\/p>\n

Let the principal be P<\/p>\n

SI = P xT x R\/100<\/p>\n

difference = P x 4 x 4 \/100 – P x 5 x 3\/100<\/p>\n

= 16P\/100 – 15P\/100 = 80<\/p>\n

P = 8000 Rs.<\/p>\n

5)\u00a0Answer\u00a0(C)<\/strong><\/p>\n

Given that P = 4800, T = 2.25, R = 8.5<\/p>\n

We know that Simple Interest $ I = \\frac{PTR}{100} $<\/p>\n

Therefore,$ I = \\frac{4800 \\times 2.25 \\times 8.5}{100} $<\/p>\n

=> $ I = \\frac{91800}{100} = Rs 918\/- $<\/p>\n

6)\u00a0Answer\u00a0(A)<\/strong><\/p>\n

Simple interest SI= P\u00d7 N\u00d7R \u00f7 100<\/p>\n

P=principle amount<\/p>\n

N= Time period<\/p>\n

R= rate of interest<\/p>\n

SI=1000\u00d710\u00d74\u00f7100<\/p>\n

SI=400<\/p>\n

For compound interest (CI)<\/p>\n

Amount=P\u00d7(1+R\u00f7100)^N<\/p>\n

Amount=1000\u00d7(1+10\u00f7100)^4<\/p>\n

Amount=1464.1<\/p>\n

Amount=P+CI<\/p>\n

CI=Amount-P<\/p>\n

CI=464.1<\/p>\n

CI-SI=64.1<\/p>\n

7)\u00a0Answer\u00a0(A)<\/strong><\/p>\n

amount= principle+interest<\/p>\n

compound interest,<\/p>\n

$ amt = p \\times (1+ \\frac{r}{100})^n $<\/p>\n

amt=p+interest<\/p>\n

interest=2100<\/p>\n

r=10%<\/p>\n

n=2<\/p>\n

$ p+2100 =\u00a0\u00a0p \\times (1+ \\frac{10}{100})^2$<\/p>\n

solving we get p=10000<\/p>\n

simple interest<\/p>\n

$ si= \\frac{p \\times n \\times r}{100} $<\/p>\n

p=10000<\/p>\n

n=2<\/p>\n

r=10%<\/p>\n

substituting<\/p>\n

$ si= \\frac{10000 \\times 10 \\times 2}{100} $<\/p>\n

=2000<\/p>\n

8)\u00a0Answer\u00a0(A)<\/strong><\/p>\n

SI = $ \\frac{PNR}{100} $<\/p>\n

CI = $ P(1 + \\frac{r}{100})^n $<\/p>\n

P = 10000<\/p>\n

N = 3 years<\/p>\n

R = 3%<\/p>\n

$ SI = \\frac{10000 \\times 3 \\times 3}{100} = 900 $<\/p>\n

CI = $ 10000(1 + \\frac{3}{100})^3 $<\/p>\n

= 927.27<\/p>\n

CI – SI = 927.27 – 900 = 27.27<\/p>\n

9)\u00a0Answer\u00a0(C)<\/strong><\/p>\n

CI for 2 years = Rs 282.15<\/p>\n

SI for 2 years = Rs 270<\/p>\n

SI for 1 year = $ \\frac{270}{2} =135 $<\/p>\n

difference between SI and CI = 282.15 – 270 = 12.15 Rs<\/p>\n

rate% = $ \\frac{12.15}{135} \\times 100 = 9$%<\/p>\n

for 1st year CI and SI will be same<\/p>\n

10)\u00a0Answer\u00a0(C)<\/strong><\/p>\n

Difference in C.I and S.I for 2 years<\/p>\n

= Rs(696.30-660)<\/p>\n

=Rs. 36.30.<\/p>\n

S.I for one years = Rs330.<\/p>\n

S.I on Rs.330 for 1 year =Rs. 36.30<\/p>\n

$R=\\frac{S.I\\times100}{{P}\\times{T}}$<\/p>\n

Rate<\/p>\n

$= \\frac{100\\times36.30}{330\\times1}$<\/p>\n

= 11%<\/p>\n

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We hope this Simple and Compound Interest Questions set-4 pdf for RRB NTPC exam will be highly useful for your Preparation.<\/p>\n","protected":false},"excerpt":{"rendered":"

Simple and Compound Interest Questions for RRB NTPC Set-4 Download RRB NTPC Simple and Compound Interest Questions Set-4 PDF. Top 10 RRB NTPC questions based on asked questions in previous exam papers very important for the Railway NTPC exam.   Download RRB NTPC Previous Papers PDF Question 1:\u00a0The simple interest at the rate of 8% […]<\/p>\n","protected":false},"author":41,"featured_media":39855,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"om_disable_all_campaigns":false,"_mi_skip_tracking":false,"footnotes":""},"categories":[3167,125,31,1679,1603,1601],"tags":[1637,1647,1623,2659],"class_list":{"0":"post-39851","1":"post","2":"type-post","3":"status-publish","4":"format-standard","5":"has-post-thumbnail","7":"category-downloads-en","8":"category-featured","9":"category-railways","10":"category-rrb-group-d","11":"category-rrb-ntpc","12":"category-rrb-ntpc-je","13":"tag-rrb-exam","14":"tag-rrb-mocks","15":"tag-rrb-ntpc-maths","16":"tag-rrb-ntpc-mocks"},"better_featured_image":{"id":39855,"alt_text":"Simple and Compound Interest Questions for RRB 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