Question

The sum of ages of lily and nancy is twice the difference of their ages.Find the ratio of nancy's age to lily's age.

Answer 1

Answer:

1:3 OR 3:1

Step-by-step explanation:

L+N=2(L~N);  ~=N-L OR L-N

L+N=2(L-N)

L+N=2L-2N

N+2N=2L-L

3N=L

3/1=L/N

N:L=1:3

or

L+N=2(N-L)

L+N=2N-2L

L+2L=2N-N

3L=N

3/1=N/L

N:L=3:1