Question

Rajni has rupees 800 in saving account that pays 4% p.a. simple interest . How much interest she earns in 9 months ​

Answer 1

Answer:

interest she earns is rupees 64

Step-by-step explanation:

formula to take out interest is ruppes* interest*time

                                                 = 800*4%*9

                                                 = 800*4/100*9/12  (9/12 because it is in months)

                                                 = 8*3

                                                  =64

Answer 2

Answer:

Step-by-step explanation:

A=P(1+I)^9

=800(1+0.03)^9

=800(1.03)^9

= 800×1.30 = 1040

I=A-P = 1040-800= 240