सरल और मिश्रित ब्याज - Simple And Compound Interest

सरल और मिश्रित ब्याज - Simple And Compound Interest

If

P = Principal,

R = Rate per annum,

T = Time in years,

SI = Simple interest,

A = Amount

70. 

 

71. If P = Principal, A = Amount

in n years, R = rate of interest per annum.

    interest payable annually

72. (i)  interest payable half-yearly

R' = R/2,n' = 2n

(ii) interest payable quarterly;

 73.(i)  s the yearly growth factor;

    (ii) is the yearly decay factor or depreciation factor

74. When time is fraction of a year, sayyears, then

Amount= 

75CI = Amount - Principal = . 

76. When Rates are different for different years, say R₁, R₂, R₃% for 1^st, 2^nd & 3^rd years respectively, then,

77.Amount =  

In general, interest is considered to be SIMPLE unless otherwise stated.