Question

in what time will rupees 1860 amount to rupees 2278. 50, if simple interest is calculated at 9% per annum​

Answer 1

total cost (t) = 2278.50

principle (p ) = 1860

interst rate (i) = 2278.50 - 1860

= 418.50

interst rate = principle * rate * time /100.

418.50 = 1860 * 9 * time/ 100

41850 = 1860 * 9 * time

41850 = 16740 * time

time = 2.5 years ( 2years and 6 months)

please mark as brainliest answer

Answer 2

Answer:

Simple Interest=(n=number of years)

SI=

= 20

Amount after 2 years = 200+20

=220

For calculating Interest =

First Year’s balance= 200Rs

First Year’ Interest =

= 200

Now, balance after the first year= First Year’s balance +First Year’s Interest

= 200+10

= 210Rs

Second Year’s Balance= 210Rs

Second Year’s Interest=

= 10.5Rs

Balance after the second year = Second Year’s Balance + Second Year’s Interest

= 210+10.5

= 220.5Rs