Question

a certain amount of money becomes double in 5 year In how many year will it be the triple if the interest rate remain same

Answer 1

Answer:it will take 10 years to triple the principle amount.

as in 1st condition;

i =p, so that p+1= 2p in 5 yrs.

therefore, (p = p*t*r)/100

or, r = 100/5

or, r=20%

now, in 2nd condition;

i = 2p such that total amount = 3p

r = same= 20%

therefore t = 10 yrs.

Step-by-step explanation:

Answer 2

Answer:

10 years

Step-by-step explanation:

P = x, S. I = x

x = x × R × 5 /100

R =20%

A= 3x

P=x

S. I =2x

2x = x × 20 × T /100

20x =2×T

T = 10 years