type 1 basic simple interest using formula Practice Questions Answers Test with Solutions & More Shortcuts
simple interest PRACTICE TEST [6 - EXERCISES]
type 1 basic simple interest using formula
type 2 increase or decrease in interest rate
type 3 money multiples in ‘n’ years
type 4 difference & equality of si rate & years
type 5 si on ‘n’ years & ‘x/y ‘of sum
type 6 si with ratios
Question : 16 [SSC CGL Prelim 2005]
A person borrows Rs.5,000 for 2 years at 4% per annum simple interest. He immediately lends it to another person at 6$1/4$% per annum simple interest for 2 years. His gain in the transaction is
a) Rs.450
b) Rs.112.50
c) Rs.150
d) Rs.225
Answer »Answer: (d)
Using Rule 1,
Case I :
S.I. = ${5000 × 2 × 4}/100$ = Rs.400
Case II :
S.I. = ${5000 × 25 × 2}/{100 × 4}$ = Rs.625
Gain = Rs.(625 - 400) = Rs.225
Question : 17 [SSC DEO 2009]
In how many years will a sum of Rs.3,000 yield a simple interest of Rs.1,080 at 12% per annum ?
a) 2$1/2$ years
b) 3 years
c) 3$1/2$ years
d) 2 years
Answer »Answer: (b)
Using Rule 1,
Time = ${SI × 100}/{\text"Principal × Rate"$
= ${1080 × 100}/{3000 × 12} = 3$ years
Question : 18 [SSC CHSL 2010]
A sum of money amounts to Rs.850 in 3 years and to Rs.925 in 4 years at some rate of simple interest. The sum is :
a) Rs.600
b) Rs.550
c) Rs.700
d) Rs.625
Answer »Answer: (d)
Interest for 1 year
= Rs.(925 - 850) = Rs.75
If a sum becomes $a_1$ in $t_1$ years and $a_2$ in $t_2$ years then rate of interest
= ${100(a_2 - a_1)}/({a_1t_2 - a_2t_1})%$
= ${100(925 - 850)}/{850 × 4 - 3 × 925} = 7500/625$ = 12%
Principal = ${SI × 100}/{\text"Time × Rate"$
= ${75 × 100}/{1 × 12}$ = Rs.625
Using Rule 12,
P = $({A_2T_1 - A_1T_2}/{T_1 - T_2})$
= ${925 × 3 - 850 × 4}/{3 - 4}$
= ${2775 - 3400}/{-1}$
= ${- 625}/{- 1}$ = Rs.625
Question : 19 [SSC CPO S.I.2008]
A sum of money at some rate of simple interest amounts to Rs.2,900 in 8 years and to Rs.3,000 in 10 years. The rate of interest per annum is
a) 2$1/2$%
b) 4%
c) 2%
d) 3%
Answer »Answer: (c)
Principal + interest for 8 years= Rs.2900... (i)
Principal + interest for 10 years = Rs.3000 ... (ii)
Subtracting equation (i) from (ii)
Interest for 2 years = Rs.100
Interest for 8 years
= $100/2 × 8$ = Rs.400
From equation (i),
Principal = Rs.(2900 - 400) = Rs.2500
Rate = ${S.I × 100}/{\text"Time × Principal"}$
= ${400 × 100}/{8 × 2500} = 2%$
Using Rule 12,
R = $({A_1 - A_2}/{A_2T_1 - A_1T_2})$ × 100
= $({2900 - 3000}/{3000 × 8 - 2900 × 10})$ × 100
=$({- 100}/{24000 - 29000}) × 100$
= ${-100}/{-5000}$ × 100 = 2%
Question : 20 [SSC CGL Prelim 2003]
A lends Rs.2500 to B and a certain sum to C at the same time at 7% annual simple interest. If after 4 years, A altogether receives Rs.1120 as interest from B and C, the sum lent to C is
a) Rs.6500
b) Rs.700
c) Rs.1500
d) Rs.4000
Answer »Answer: (c)
Using Rule 1,
Let the sum lent to C be x
According to the question,
${2500 × 7 × 4}/100 + {x × 7 × 4}/100 = 1120$
or 2500 × 28 + 28x = 112000
or 2500 + x = 4000
or x = 4000 - 2500 = 1500
IMPORTANT quantitative aptitude EXERCISES
-
Top 999+ Basic Simple Interest MCQ for BANK SSC UPSC Exam »
-
New 899+ Simple Interest Questions For BANK & IBPS Exams »
-
Top 799+ Simple Interest Aptitude Questions Answers Test »
-
Top 999+ Aptitude Simple Interest MCQ: SSC Practice Test »
-
Top 799+ Simple Interest Question and Answer Test for SSC »
-
New 750+ Simple Interest MCQ with Ratios For All BANK SSC »
type 1 basic simple interest using formula Shortcuts »
Click to Read...type 1 basic simple interest using formula Online Quiz
Click to Start..simple interest Shortcuts and Techniques with Examples
-
type 1 basic simple interest using formula
Defination & Shortcuts … -
type 2 increase or decrease in interest rate
Defination & Shortcuts … -
type 3 money multiples in ‘n’ years
Defination & Shortcuts … -
type 4 difference & equality of si rate & years
Defination & Shortcuts … -
type 5 si on ‘n’ years & ‘x/y ‘of sum
Defination & Shortcuts … -
type 6 si with ratios
Defination & Shortcuts …
quantitative aptitude CATEGORIES
RECENT BLOGS
Recently Added Subject & Categories For All Competitive Exams
Classification Reasoning MCQ For IBPS Clerk Prelims 2024
Most Important 100+ Classification based Verbal Reasoning Ability Multiple choice questions and answers PDF, Free New Mock tests For IBPS Clerk Prelims 2024
Continue Reading »
Ratio and Proportion Questions with Solutions, IBPS Clerk
New Ratio and Proportion Quants Aptitude based Multiple Choice Questions and Answers Practice Test Series, Quiz & Mock Test for IBPS Clerk Prelims 2024 Exam
Continue Reading »
Top Analogy Reasoning Ability For IBPS Clerk Prelims 2024
Most Important Analogy based Verbal Reasoning Multiple choice questions and answers practice quiz series PDF, Free New Mock tests For IBPS Clerk Prelims 2024
Continue Reading »
SSC STENO: Mensuration Area & Volume Questions Test PDF
Free Mensuration Area and Volume Aptitude-based Practice multiple questions with solutions, Quiz, Full Mock Test & PDF for SSC Steno (Grade C & D) 2024 Exam
Continue Reading »