Question

please tell me 5 q please with formulas and no spam​

Answer 1

Answer:

Rate of Interest = 7% p.a.

Explanation:

Given -

i) Principal = 18,000

ii) Simple Interest = 8,820

iii) Rate of Interest = Same as Time Taken

To find-

Rate of Interest

Solution-

Let Rate of Interest(r) = Time taken(t) = x

Now,

$R = \frac{S.I. \times 100}{P \times T}$

$x = \frac{8820 \times 100}{18,000 \times x}$

$x = \frac{882}{18 \times x}$

$x^{2} = 49$

$x = 7$

∴ Rate of Interest = 7% per annum