Simple Interest
1.         What will be the simple interest earned on an amount of  988/- at the rate of 18 p.c.p.a., at the end of 5 years?
a)  711.36/-    b)  898.2/-     c)  799.25/-    d)  805.4/-     e) None of these
2.         What amount a man would have received on a principal of  4,000/- after 2 years simple   interest at the rate of 5 p.c.p.a.?
a)  4,161/-      b)  5,200/-     c)  4,400/-      d)  4,100/-     e)  4,190/-
3.         Veena obtained an amount of  8,376/- as simple interest on a certain amount at the rate   of 8 p.c.p.a. after 6 years. What is the amount invested by Veena?
a)  1,780/-      b)  18,110/-   c)  16,660/-    d) 17,450/-    e) None of these
4.         The simple interest accrued on an amount of   2,500/- at the end of six years is  1,875/-  What would be the simple interest accrued on an amount of   6,875/- at the same rate   and same period?
a)  4,556.5/-   b)  5,025.25/-   c)  4,895.25/-    d)  5,245.5/-     e) None of these
5.         Manish borrowed a sum of  1,150/- from Anil at the simple rate of 6 p.c.p.a. for 3 years. He then added some more money to the borrowed sum and lent it to Sunil for the same      time at 9 p.c.p.a. at simple interest. If Manish gains  274.95/- by way of interest on     borrowed sum as well as his own amount from the whole transaction, then what is the    sum lent by him to Sunil?
a)  1,290/-      b)  1,785/-     c)  1,285/-      d)  1,200/-     e) None of these
6.         Suhit borrowed a sum of  6,300/- from Vikas at the rate of 14% for 3 years. He then       added some more money to the borrowed sum and lent it to Mohit at the rate of 16% of            simple interest for the same time. If Suhit gained  618/- in the whole transaction, then what sum did he lend to Mohit?
a)  7,000/-      b)  6,800/-     c)  7,200/-      d) Cannot be determined
e) None of these
7.         Arun invested a sum of money at a certain rate of simple interest for a period of 4 years.   Had he invested the same sum for a period of 6 years the total interest earned by him         would have been 50 per cent more than the earlier interest amount. What was the rate of interest per cent per annum?
a) 4%   b) 8%   c) 5%   d) cannot be determined         e) None of these
8.         Shamita took a loan at simple interest rate of 6 p.c.p.a. in the first year and it increased by             1.5 p.c.p.a. every year. If she pays  8,190/- as interest at the end of 3 years, what was her      loan amount?
a)  36,000/-    b)  35,400/-   c)  36,800/-    d) Cannot be determined
e) None of these
9.         A sum was put at simple interest at a certain rate for 2 years. Had it been put at 3% lower rate, it would have fetched  300/- less. Find the sum.
a)  1,000/-      b)  2,000/-     c)  3,000/-      d)  5,000/-     e) None of these
10.       What annual payment will discharge a debt of  54,000/- due in 5 years, the rate of           interest, being 4% per annum?
a)  10,000/-    b)  11,000/-   c)  15,000/-    d)  20,000/-   e) None of these
11.       Arunima invests an amount o  10,250/- at the rate of 4 p.c.p.a. to obtain a total amount    of  12,710/- on simple interest after a certain period. For how many years did she invest            the amount to obtain the total sum?
a) 6 years         b) 8 years         c) 5 years         d) 4 years        e) None of these
12.       At what rate of simple interest per annum can an amount of  1,553.40/- be obtained on    the principal amount of  8,630/- after 3 years?
a) 8 p.c .p.a.     b) 2 p.c.p.a.     c) 5 p.c.p.a.      d) 7 p.c.p.a.     e) None of these
13.       Jayesh has taken a loan at an interest of 18% per annum from a cooperative committee. If after 4 years he returned  9,374/- including interest, then how much was the principal?
a)  5,000/-      b)  5,400/-     c)  5,450/-      d)  5,600/- (e) None of these
14.       600/- becomes  720/- in 4 years when the interest is simple. If the rate of interest is       increased by 2%, then what will be total amount?
a)  642/-         b)  724/-        c)  725/-         d)  768/-        e) None of these
15.       The amount of  5,500/- becomes  10,780/- after 6 years at simple interest. What is the    rate of interest?
a) 14%             b) 12%             c) 15%             d) 16%            e) None of these
16.       Mr. Deepak invested an amount of   21,250/- for 6 years. At what rate of simple interest             will he obtain the total amount of  26,350/- at the end of 5 years?
a) 6 p.c.p.a.      b) 5 p.c.p.a.     c) 8 p.c.p.a.      d) 12 p.c.p.a.   e) None of these
17.       Anil invested an amount for 3 years at a simple interest rate of 9 p.c.p.a. He got an            amount of  19,050/- at the end of 3 years. What principal amount did he invest?
a)  14,500/-    b)  11,050/-   c)  15,000/-    d)  10,950/- e) None of these
18.       What is the interest received on a principal of  450/- for 2 years. If the interest received   on  1/- after 4 years at the same rate of simple interest is  0.40/-?
a)  90/-           b)  180/-        c)  36/-           d)  200/-        e) None of the above.
19.       What should be the simple interest obtained on an amount of  5,760/- at the rate of 6       p.c.p.a. after 3 years?
a)  1,036.80/-   b)  1,666.80/-    c)  1,536.80/-     d)  1,063.80/-  e) None of these
20.       Ms. Suchi deposits an amount of  24,000/- to obtain a simple interest at the rate of 14      p.c.p.a. for 8 years. What total amount will Ms. Suchi get at the end of 8 years?

a)  62,080/-    b)  28,000/-   c)  50,880/-    d)  26,880/-   e) None of these

SOLUTIONS
1. [E];

2. [C];              Amount           = Principal + S.I.
=
= 4000 + 400 =  4,400/-
3. [D];
=  17,450/-
4. E];               Let the rate of interest be R% per annum.

5. [B];              Let the required sum lent to Sunil be  x.

6. [B];              Let the money lent to Mohit be  x.

7. [D];              Cannot be determined.
8. [E];              Let loan amount be  x
According to question,
8190

9. [D];              Let the sum be  x
According the question,

x =  5,000/-
10. [A];                        Annual payment
=
11. [A];                        S.I. =  [12710 – 10250] =  2,460/-
Time =
12. [E];                        Rate =
13. [C];
or,        9374 =
or,        9374 =
P =
14. [D];                        S.I. = 720 – 600 = 120
R =
Now, from the second part of the question
R = 5 + 2 = 7%
S.I. =
Amount = P + S.I. = 600 + 168 =  768/-
15. [D];                        Rate =
16. [E];                        Interest = 26350 – 21250 =  5,100/-
Rate =
17. [C];                        Let the principal be  x.
Interest = [19050 – x] Now,
Principal =
x =
27 x = 1905000 – 100x
127x = 1905000
x =
x  =  15,000/-
18. [A];                        S.I. on  1/- for 4 years =  0.4/-
S.I. on  100/- for 4 years =  40/-
S.I. on  100/- for 1 year =  10/-
S.I.   =
=
19. [A];                        S.I.
=
20. [C];                        S.I.      =
Total amount =  [24000 + 26880] =  50,880/-