Question

sixteen years later, usha will be two times as old as she was 16 years ago. how old is she now?

Answer 1

let "x" be her present age.

sixteen years later = 16+x
two times * sixteen years before = 2 ( x-16 )
16 + x = 2( x - 16)
16 + x = 2x -32
16 + 32 = 2x-x

48 = x

so usha is 48 years old .it is her present age.


hope it helps!!!

Answer 2

let present age of usha be x.
now,16 years ago usha age was x-16.
and after 16 years usha age will be x+16.

ATQ
x+16=2(x-16).
x+16=2x-32 .
x-2x=-32-16.
-x=-48.
x=48.

therefore present age of sudha is 48