Question

At simple interest a sum becomes (of itself in 5 years. The rate of interest is
(a) 10% p.a.
(c) 15%p.a
(b) 12½% p.a.
(d) 15% p.a.
​

Answer 1

Answer:

As we know that every value is a 100% value in it's own so we can say that the sum or principal amount is also a 100% value.

Also we know that simple interest increases every year by same percentage value.

According to given condition the 2/5 or (2*100)/5 or 40% simple interest has been received on principal amount in 5 years.

Rate of interest per year or annually will be 40/5 = 8%.

Answer 2

Answer:

hi good night☺☺