definition

15
Jun
Formulae

FORMULAE  :  

 (i) When  interest is compounded  K  times in a year, then

A  =  P

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15
Jun
Compound Interest

Give the difference between the  C. I.  and  S. I.  by proper example.

Let,  P  =  Rs.  1000,   R  =   10 %   and   N  =   3  years.

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15
Jun
Examples 7 to 9

(7) A shopkeeper borrowed Rs. 30000 from money lenders. For one loan he paid  10 % and for the other  15 %  per annum. After one year, he paid Rs. 3600 as interest. How much did he borrow at each rate ?

Soln.

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15
Jun
Examples 4 to 6

(4) A certain sum amounts to Rs. 5800 in 2 years, Rs. 7400 in 6 years.  Find the rate and the sum.

Soln. Here,

P  +  6I   =  7400
  ( Amount for 6 yrs. )

P  +  2I   =  5800

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Posted in: Examples 4 to 6,
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15
Jun
Examples 1 to 3

(1) Find  S. I.  on Rs. 27000 at  7\frac{1}{3}  %  per annum for 3 years 8 months.

Soln. Here,  P  = 27000,   R =

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