Question

In what time will a sum triple itself at 12.5 interest rate per annum

Answer 1

Step-by-step explanation:

let the sum is 100

rate 12.5

interest 200

time=(200×1000)÷(100×125)

=2000÷125

=16

time is 16 years

Answer 2

Answer:

Step-by-step explanation:

where i is intrest

p is principal

r is rate

t is time

now you want to triple the money.that means I=2P.

hence 2P=P*R*T/100

2*100=15*T

Hence 200/15=13.33 year or 13 year and 4 months

so the answer will be 13 year and 4 months