simple and compound interest Model Questions & Answers, Practice Test for ssc cgl tier 1 2023

Question :11

A man invested Rs.16000 at compound interest for 3 years, interest compounded annually. If he got 18522 at the end of 3 years, then the rate of interest is

Answer: (b)

$(1 + r)^3$ = $18522/16000=9261/ 8000=(21/20)^3 = (1+1/20)^3$

∴ Rate of interest = $1/20$=5%

Question :12

How much will be the C.I. to be paid on a principal amount of Rs. 85,000 after 3 years at the rate of 6 p.c.p.a?

Answer: (b)

Amt =$85000(1+6/100)^3=101236.36$

CI = 101236.36 – 85000 = 16236.36

Question :13

Sudhanshu invested Rs. 15,000 at interest @ 10% p.a for one year. If the interest is compounded every six months what amount will Sudhanshu get at the end of the year?

Answer: (c)

Required Amount = 15000 $(1+5/100)^2$ = Rs.16537.50

Question :14

What is the interest received on a principal of Rs. 450 for 2 yea if the interest received on Rs. 1 after four year at the same rate of simple interest is Rs. 0.40?

Answer: (c)

Interest on Rs.1 in 4 years = Rs.0.4

∴ Interest on Rs.100 in 4 years = Rs.40

∴ Interest on Rs.100 in 1 year = Rs.10

∴ Interest=$\text"Principal×Time×Rate"/100$

= ${450×2×10}/100$=Rs.90

Question :15

The simple interest on a certain sum of money for 4 years at 4 per cent per annum exceeds the compound interest on the same sum for 3 years at 5 per cent annum by Rs. 57. Find the sum.

Answer: (c)

Let the sum be x.

Then, ${x × 4 × 4}/{100} - 57 = x [{(1+ {{5}/{100}})^3 -1}]$

or, ${4x}/{25} - 57 = x[{1261}/{8000}]$

or, x $[{4}/{25} - {1261}/{8000}]$= 57

or, x $[{1280 - 1261}/8000]$ = 57

∴ x = ${57 × 8000}/{19}$ = Rs.24000

ssc cgl tier 1 2023 IMPORTANT QUESTION AND ANSWERS

Recently Added Subject & Categories For All Competitive Exams

100+ Quadratic Equation Questions Answers PDF for Bank

Quadratic Equation multiple choice questions with detailed answers for IBPS RRB SO. more than 250 Attitude practice test exercises for all competitive exams

03-Jul-2024 by Careericons

Continue Reading »

IBPS Aptitude Linear Equations MCQ Questions Answers PDF

Linear equations multiple choice questions with detailed answers for IBPS RRB SO. more than 250 Attitude practice test exercises for all competitive exams

03-Jul-2024 by Careericons

Continue Reading »

New 100+ Compound Interest MCQ with Answers PDF for IBPS

Compound Interest verbal ability questions and answers solutions with PDF for IBPS RRB PO. Aptitude Objective MCQ Practice Exercises all competitive exams

02-Jul-2024 by Careericons

Continue Reading »

100+ Mixture and Alligation MCQ Questions PDF for IBPS

Most importantly Mixture and Alligation multiple choice questions and answers with PDF for IBPS RRB PO. Aptitude MCQ Practice Exercises all Bank Exams

02-Jul-2024 by Careericons

Continue Reading »