Question

A man invested Rs X in simple interest at a rate of interest of 15 % for 5 yrs .then he invested X+300 at compound interest at 10% rate for 2 years.The total interest obtained in 2 years is Rs4383. Find the total amount (in Rs) invested by the man.

Answer 1

Answer:

4083 is the total amount invested by a man

Answer 2

He invested total amount of Rs.9300

Step-by-step explanation:

Principal amount = Rs. x

rate of simple  interest = 15%

time = 5 years

then he invested the amount = x + 300

rate of compound interest = 10%

time = 2 years

obtained interest = Rs. 4383

$\frac{x\times 15\times 5}{100}+(x+300)[1+(\frac{10}{100})^{2}-1]=4383$

$\frac{3}{4}x+\frac{121}{100}x\pm x+363\pm 300=4383$

$\frac{24}{25}x+63=4383$

$\frac{24}{25} x=4320$

x = 4500

(x + 300) = 4800

Total investment = 4500 + 4800

                           = Rs. 9300

He invested total amount of Rs.9300

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