Question

Find the rate per cent per annum when rs 700 yields rs 269.50 in 5 1/2 years?

Answer 1

Answer:

Brainiest me

Step-by-step explanation:

As interest is calculated as simple interest

So, we can add up rates for all given 5 years and calculate it easily i.e.

For the five years rate

= (8 × 3 + 7.5 × 2)

= 39%

Now,

700 = 39% ↑

⇒ 973

Interest = Rs. 273

The thought can go this way we internally calculated

10% of 700=700/10=70

Then,

39% of 700

=(40%−1%)of700

=(280−7)

=273

Answer 2

Answer:

Step-by-step explanation:

P= 700

SI= 269.50 RS

N=5 1/2 =11/2 RS

Si= Pin
i = SI/P

269.50 x 100/i%700 x 11

=26950x 2

100x700x11/2

2695x2/70x11

=5397x1 / 1x1

=7% Ans.