-
magical cook
- Master | Next Rank: 500 Posts
- Posts: 484
- Joined: Sun Jul 30, 2006 7:01 pm•Followed by: 1 member
- Thanked: 2 times
...from the information given
x = 7a + 4 and x = 5b+3
Also
y =7m+4 and y = 5n+3 ..
now x –y = 7(a-m)=5(b-n) .. so that basically means (x-y) is a multiple of both 7 and 5 .. so it has also got to be the multiple of the LCM of 7 and 5 .. that is 35 .. so the answer is E
