Question

in how much time will rupees 10000 read and interest on rupees 8500 at the rate of 17.2 % within the same time period at what rate of interest will the double itself​

Answer 1

Step-by-step explanation:

ptr/100 = I

10000 X t X 17.2/100 = 8500

172000 X t/100 = 8500

1720 X t = 8500

t = 8500/1720

t = 4.9 years

double of 8500 = 17000

ptr/100 = I

10000 X 4.9 X r/100 = 17000

49000 X r/100 = 17000

490 X r = 17000

r = 17000/490

r = 34.6

therefore, rate = 34.6%

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