A sum of Rs 1,250 amounts to Rs 1,550 in 4 years at a specific simple interest rate. What is the rate of interest?

0.06

Step-by-step explanation:

- simple rate of interest has a formula A = P(1 + rt)

A is  final amount

P is the original amount

- replacing the values in the formula you get

1550= 1250 ( 1 + r*(4))

- rearrange and calculate r

(1150/1250) -1 = 4r

4r = 0.24

r = 0.24/4 = 0.06 %

the simplified form is

step-by-step explanation:

we want to simplify the expression,

let us change the middle bar to a normal division sign to obtain,

we multiply the first fraction by the reciprocal of the second fraction to obtain,

we factor to obtain,

we cancel the common factors to get,

we simplify to get,

the correct answer is b

cause it equals more