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Find the rate per cent p.a.when rs 800 yields rs 80 intrest in 2 yr ?​

Answer 1

Answer:

Rate = interest x 100/time x priciple

r = 80*100/800*2

r = 5%

Answer 2

Answer:

Principal = 800, Time = 2 years, Interest = 80.

The formula for Simple Interest is :

• SI = PTR/100.

==> 80 = (800 * 2 * R)/100

==> 80 * 100 = 800 * 2 * R

==> 8000 = 1600 * R

==> R = 5%

Hence, Rate = 5%