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  • SBI SO Exam Quantitative Aptitude Study Material

Digitization help student to explore and study their academic courses online, as this gives them flexibility and scheduling their learning at their convenience. Kidsfront has prepared unique course material of Quantitative Aptitude Simple and compound interest for SBI SO Exam student. This free online Quantitative Aptitude study material for SBI SO Exam will help students in learning and doing practice on Simple and compound interest topic of SBI SO Exam Quantitative Aptitude . The study material on Simple and compound interest, help SBI SO Exam Quantitative Aptitude students to learn every aspect of Simple and compound interest and prepare themselves for exams by doing online test exercise for Simple and compound interest, as their study progresses in class. Kidsfront provide unique pattern of learning Quantitative Aptitude with free online comprehensive study material and loads of SBI SO Exam Quantitative Aptitude Simple and compound interest exercise prepared by the highly professionals team. Students can understand Simple and compound interest concept easily and consolidate their learning by doing practice test on Simple and compound interest regularly till they excel in Quantitative Aptitude Simple and compound interest.


Simple and compound interest
A certain amount of money earns Rs. 540 as Simple Interest in 3 years. If it earns a Compound Interest of Rs. 376.20 at the same rate of interest in 2 years, find the amount (in Rupees)

a) 2100
b) 2000
c) 1800
d) 1600


✔Answer
✔Solution
Correct Answer Is : 1600
Solution Is : S.I for 2 years = 2/3 x 540 = Rs. 360 C.I - S.I = 376.20 - 360 = Rs.16.20 Rate of interest =16.20 / 180 x 100 = 9% per annum Principal = S.I x 100 / Time x Rate = 189 x 100 / 1 x 9 = Rs. 2000
A sum amounts to double in 8 years by simple interest. Then the rate of simple interest per annum is

a) 20%
b) 15%
c) 10%
d) 12.5%


✔Answer
✔Solution
Correct Answer Is : 12.5%
Solution Is : Principal = Rs.x Amount = Rs. 2x Interest = 2x - x Rate = S.I * 100/principal * Time = x * 100/ x * 8 = 25/2 = 12.5 % per annum
Rekha invested a sum of 12000 at 15% per annum compound interest. She received an amount of 13230 after n years. Find n.

a) 2.8 years
b) 3.0 years
c) 2.5 years
d) 2.0 years


✔Answer
✔Solution
Correct Answer Is : 2.0 years
Solution Is :
These count on a certain time of money, due to at the end of 2 1/4 years at 2 2/3 % p.a. is Rs.78. Find the sum.

a) Rs. 1,278
b) Rs. 1,300
c) Rs. 1,378
d) Rs. 1,400


✔Answer
✔Solution
Correct Answer Is : Rs. 1,300
Solution Is : (2) Sum = (discount*100)/(time*rate) =(78*100)/((9/4)*(8/3)) =(78*100)/6 =Rs.1300
Rs.800 amounts to Rs. 920 in 3 years at simple interest. If the interest rate is increased by 3 %, it would amount to

a) Rs.1,056
b) Rs.1,112
c) Rs.1,182
d) Rs.992


✔Answer
✔Solution
Correct Answer Is : Rs.992
Solution Is :
In What time will Rs. 64,000 amount to Rs. 68,921 at 5% per annum interest being compounded half yearly?

a) 3 years
b) 2(1/2)years
c) 2years
d) 1(1/2)years


✔Answer
✔Solution
Correct Answer Is : 1(1/2)years
Solution Is : Time =T half years Rate =(5/2)% per half year A= p(1+r/100)^T A=p(1+R/100)^T =68921=64000(1+(5/200))^T 68921/64000=(1+1/40)^T =68921/64000=(41/40)^T =(41/40)3=(41/40)T T=3 half years
Find the rate per cent per annum, if Rs. 2000 amounts to Rs. 2315.25 in a year and a half interest being compounded half yearly.

a) 11.50%
b) 10%
c) 5%
d) 20%


✔Answer
✔Solution
Correct Answer Is : 10%
Solution Is : Time =(3/2) years= 3 half years Rate =2R% per annum =R% per half annum =R% half year Amount =Principal-((1+(Rate/100))^time 231525=2000(1+(R/100))3 9261/8000=(1+(R/100))3 (21/20)3=(1+(R/100))3 1+(1/20)=(1+(R/100) (R/100)=(1/20) =5% Per half year Required rate =10% Per annum
A and B borrowed Rs. 3000 and Rs. 3200 respectively at the same rate of interest for 2(1/2) years. If B paid Rs. 40 more interest than A, find the rate of interest.

a) 5%
b) 7%
c) 8%
d) 6%


✔Answer
✔Solution
Correct Answer Is : 8%
Solution Is : Rate of interest =r% per annum S.I=principal*time*rate/100 According to the question, (3200*5*r/100*2)-(3000*5*r/200)=40 5r=40 r=40/5 =8%per annum
A certain sum will amount to Rs.12100 in 2 years at 10% per annum of compound interest, interest being compounded annually. The sum is

a) Rs.12000
b) Rs.6000
c) Rs.8000
d) Rs.10000


✔Answer
✔Solution
Correct Answer Is : Rs.10000
Solution Is : Final rate of interest for two pens
=x+y+(xy/100)
=10+10+(100/100) =21%.
Let principal be P ⇒
P *(121/100) =12100
⇒ P =100*100 =10000
Ram deposited a certain sum of money in a company at 12% per annum simple interest for 4 years and deposited equal amount in fixed deposit in a bank for 5 years at 15% per annum simple interest. If the difference in the interest from two sources is 1350, then the sum deposited in each case is :

a) 3000
b) 4000
c) 5000
d) 6500


✔Answer
✔Solution
Correct Answer Is : 5000
Solution Is : Let amount invested in each
company beRs.x
S.I=Principal*Rate*Time/100
According to the question,
x*15*5/100-x*12*4/100
=1350
⇒75x/100-48x/100=1350
⇒27x/100=1350
⇒x=1350*100/27
=Rs.5000

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