Question

13.
A sum of money trebles itself in 16 years. Find the rate of interest.
2
In what time will a sum of money put at 16-% simple interest trebles itself?
3​

Answer 1

Answer:

12.5

Step-by-step explanation:

let  rupees = 100

time = 16

rate = x

SI = 100*16*x/100

amount = SI+P =   16x +100

=  equation = 16x+100 = 3*100

= 16x = 300- 100

x = 200/16

x= 12.5