Question

Principal=rs1800, Rate=10%p.a., interest=rs420​

Answer 1

Answer :-

Given -

• Principal = Rs. 1800
• Rate = 10% p.a.
• Simple interest = Rs. 420

To Find -

• Time, T

Solution :-

We know that,

$\boxed{\sf SI = \frac{PRT}{100}}$

Substituting the value in formula -

$\implies\sf SI = \frac{PRT}{100}$

$\implies\sf 420 = \frac{18\cancel{00} \times 10 \times T}{1\cancel{00}}$

$\implies\sf 420 = 180T$

$\implies\sf T = \frac{42 \cancel0}{18 \cancel0}$

$\implies\sf T = \frac{7}{3}$

$\implies\boxed{\sf T = 2 \frac{1}{3}\: years}$