Page 122 - New Medley 5 Semester 2
P. 122

`8000 × 7 × 2
                                   So,                          S.I. =                          = `1120
                                                                                 100

                                   And,                            A = P + S.I. = `8000 + `1120 = `9120


                                                                                                            1
               Example 2:  A  farmer  borrowed  `10000  from  a  bank  for  2  years
                                                                                                            2
                                                             1
                                   at  the  rate  of  7         %  per  annum.  What  amount  will  he
                                                             2
                                                                        1
                                   pay to the bank after 2  years?
                                                                        2

                                                                                         1               5
               Solution:           Given, Principal =  `10000, Time = 2  years =                            years
                                                                                         2               2

                                                                            1               15
                                   and                         Rate = 7 % p.a. =                % p.a.
                                                                            2                2

                                                                          P× R× T
                                   We know,                     S.I. =
                                                                              100

                                                                                      15     5
                                                                          10000 ×          ×        10000 ×15×5
                                                                                       2     2
                                                                S.I. =                           =
                                                                                  100                 100× 2× 2


                                                                       = `1875

                                   \                               A = P + S.I.

                                                                      = `10000 +  `1875 = `11875

                                   Thus, the farmer will pay  `11875  in  all  after  completing

                                   the period of loan.


                                                        EXERCISE 4.1




                A.  Compute the simple interest and the amount for each of the following.
                     1.  P = `700, R = 6%, T = 5 years

                     2.  P = `2000, R = 8%, T = 5 years

                                                   1
                     3.  P = `2500, R = 12 %, T = 4 years
                                                   2


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