Math, asked by paakhi80, 7 months ago

A certain sum of money amounts to 756 rupees in 2 years and to 873 rupees in 3 and a half year at a certain rate of simple interest. What is the rate of interest per annum ?Please don't give incorrect answer I beg you please.​

Answers

Answered by Anonymous
2

Answer:

\huge\underline\bold {Answer:}

Let the initial cost price of the article be 100 rupees.

Profit = 20%

S.P. of the 1st dealer

 =  \frac{100 \times 120 }{100}  = 120 \: rupees

Let the second profit % = x. Then,

S.P. of the 2nd dealer

 =  \frac{120 \times (100 + x)}{100}

Final S.P. of the article after passing through two hands at a profit = 38%

 =  \frac{100 \times (100 + 38}{100}  = 138

Given,

 \frac{120 \times (100 + 38)}{100}  = 138

 =  > 12000 + 120x = 13800

 =  > 120x = 1800 \\  =  > x = 15\%

So, if the dealer makes a profit of 20%, then the profit per cent made by the second is 15%.

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