Question

find the simple interest of the principal rupees 450 rate of interest 9/2% and time period years 4 months

Answer 1

Principal = Rs 450

Rate of interest = 9/2 = 4.5

Time = 4 months = 4/12 years = 0.33

P*R*T / 100

450*4.5*0.33/100

6.70 is the answer

Answer 2

Answer: The simple interest is Rs. 6.75

Step-by-step explanation:

Given principle; P = Rs. 450

Rate= $\dfrac{9}{2} \%$

Time= 4 months = $\dfrac{4}{12}=\dfrac{1}{3}\text{ years }$

Now as we know Simple interest S.I. is given by

$S.I. =\dfrac{P\times R\times T}{100} =\dfrac{450\times \dfrac{9}{2} \times \dfrac{1}{3} }{100} =Rs. 6.75$

Hence, the simple interest is Rs. 6.75