Question

in what time a sum of money should become 1.5 times of itself at 10% per annum simple interest​

Answer 1

Let sum of money =P and Rate be P.

For Part 1

A=1.5P

T=3

A=P(1+

100

RT

)

⇒1.5P=P(1+

100

3R

)

⇒0.5=

100

3R

⇒R=

3

100×0.5

=

3

50

For Second Part

A=3P

R=

3

50

Time=T

ATP, 3P=P(1+

3×100

50T)

⇒3=1+

300

50T

⇒2=

6

T

⇒T=12

Hence, Time required =12 years.

Answer 2

Answer:

I am sorry but I'm in desperate need of points