Question

after 16 years radha will be thrice as old as she was 12 years ago. find her present age​

Answer 1

Answer:

let her present age be

after 16 yrs her age will be (x+16)---equ1

twelve yrs ago her age is (x-12)

(her age after 16 yrs is equal to thrice of her age before 12 yrs)

thrice of her age before 12 yrs is

(x-12)3-----equ 2

equate 1 and 2

x+16=(x-12)3