# Last 3 sums

Here is the solution to the question (12)

Let the principle be rs x

Time is given as 5 years.

So, the amount becomes 8x/5

Now ,

We know that

Si = amount - p

SI =8x/5 - x = 3x/5

Now we also know that

So, the rate of interest is equal to 12 percent per annum.

PS: Kindly post separate question in separate thread

Regards

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