Question 1115642: right now, Connie is twice as old as her brother. Six years ago, she was 4 times his age. How old are they now? Answer by ikleyn(52781) (Show Source):
C = 2*B (1) (right now)
C-6 = 4*(B-6) (2) (six years ago . . . )
Substitute (1) into eq(2) to get
2B - 6 = 4*(B-6),
2B - 6 = 4B - 24
24 - 6 = 4B - 2B
18 = 2B ====> B = = 9.
Answer. The brother is 9 years now. Connie age is 18 years.
