Question

find the simple interest and the amount on : ₹ 850 for 6 years at 2½ % p.a.​

Answer 1

Answer:

The amount = ₹977.50

Thus, SI = P×T×R

100

So, Principal = 850

Time = 6 years

Rate of interest = 2½% = 2.5%

= 850×6×2.5

100

SI = ₹127.50

Amount = Principal + Simple Interest

= ₹850 + ₹127. 50

= ₹977.50

Answer 2

Answer:

The simple interest on the principal amount is 127.5 rupees.

Step-by-step explanation:

Let $I$ be the interest on a principal amount $P$ at a rate of $R\%$ per annum for $N$ years. Then,

$I=\dfrac{PNR}{100}$

Given the quantities:

The principal amount, $P= 850$

The rate of interest, $R=2\frac{1}{2}\%=2.5\%$

The number of years, $N=6$ years

Then the interest is,

$I=\dfrac{850\times 6\times 2.5}{100}= 127.5$

So the simple interest on the principal amount is 127.5 rupees.