Question 731983
N+G=65 OR N=65-G
4N=G-10
4(65-G)=G-10
260-4G=G-10
-4G-G=-10-260
-5G=-270
G=-270/-5
G=54 GRANDMA'S AGE.
N=65-54=11 NORA'S AGE.
PROOF:
4*11=54-10
44=44