Question

3 Find the rate Percent per annum at simple
interest when
(a) 250 amounts to ₹ 280 in 3 years.​

Answer 1

Answer:

profit =280-250=30

30 in 3 years

10% per year

Answer 2

Answer:

p 250

amount 280

T 3

r=100×si/p×t

so 280-250=30

si=30

100×30/250×3

= 3000/750

=4

THE RATE PERCENTAGE IS 4%