Question

At what rate percent per annum will the simple interest on Rs, 15,000 be Rs. 1,500 in 2 years 6 months.

Answer 1

Answer:

4

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Step-by-step explanation:

the formulae to find SI on a given sum is P x R x T x 1/100

so, we replace the variables with the numbers here.

this makes it an equation to find the root of.

$\frac{15000 X 2.5x}{100} = 1500$

we solve it in the following steps:

⇒ $\frac{15000 X 25x}{1000} = 1500$

⇒$\frac{15000}{40} = 1500$

⇒$375x = 1500$

⇒$x = \frac{1500}{375}$

so, x = rate = 4

thus, the rate at which SI on 15000 will be 1500 in 2.5 years is 4% per annum.