Math, asked by kaushal469, 1 year ago

a pressure cooker is sold for RS 1000 in cash or for RS 240 cash down payment and balance payment followed by three equal monthly installments of RS 260 each compute the rate of interest charged in instalments schemr

Answers

Answered by ydharmendra888
0
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Answered by Anonymous
7

ANSWER

Let r% p.a. be the rate under installment scheme. After Rs 600 cash is paid, Rs 1200 remained to be paid.

This becomes Rs 1,220. Total interest paid is Rs 20.

Now Rs 1,200 is kept for one month and Rs 600 is kept for one month.

⇒ Rs 600 is kept for 3 months at r% and interest paid is Rs 20.

 \therefore 20 = 600 \times  \frac{3}{12}  \times  \frac{r}{100}

 =  > r =  \frac{40}{3}  = 13.33\%

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