Question

A sum of money doubles itself in 12 years. in how many years it would triple itself

Answer 1

it will get triple after 18 years
the sol. is as follows
let the initial amt. is x
acc. to question
x become 2x in 12 years
so,
12 years ---> 2x
1 years ----> x/6
for 3x we have to mulitply both side by 18
18 years ----> 3x