Question

1. Anil invested an amount for three years at a simple interest
rate of 9% p.a. He got an amount of Rs 19,050 at the end of
three years. What principal amount did he invest?
a. Rs 14,500 b. Rs 11,050
c. Rs15,000
d. Rs 10,950 e. None of these​

Answer 1

Given: time (T) =3 yrs

Rate of interest (R) =9% pa

Amount received at the end of 3 yrs (A)= Rs19050

To find: principal amount(P)=?

Let P= x.

We know, A= P +I .

SI =(PTR/100) =x *3*9/100 =27x/100.

Now, (27x/100) + x =19050

Or,127x/100 =19050

Or,x= (19050*100)/127

Or, x =1905000/127

Therefore, x = Rs 15000.

Answer 2

Answer:

C RS15000

Step-by-step explanation:

Let the principal be = Rs x There for Interest = (19050 – x)

$principal = \frac{interestX100 }{time X rate }$

$x = \frac{(19,050-x)X100}{3X9}$

27x =  1905000-100x

127x= 1905000

$x = \frac{1905000}{127}$

=  15000