Question

Suman invested rupees 4000 in a building society which payed simple interest rate of 6% per annum. After 2 years rate was increases 7.5 % per annum find the amount received after 5 years​

Answer 1

S.I.=$\frac{R}{100}$×P×T

S.I.=$\frac{6}{100}$×4000×2

S.I.=480

AFTER TWO YEARS RATE OF INTEREST INCREASES

S.I.=7.5/100*4000*3

S.I.=900

TOTAL INTEREST AFTER 5 YEARS=480+900

                                                          =1380

AMOUNT RECIEVED AFTER 5 YEARS=4000+1380

                                                              =5380