Question 1
If Carmen were 7 years younger, she would be 3/10 of Zoe's age 4 years from now. If Carmen is 7 years younger than Zoe, find Carmen's present age.
Let Zoe = 37, then Carmen = 30
Check: (30 - 7) = 3/10 × (37 + 4)
23 = 3/10 × 41 ✓
Check: (30 - 7) = 3/10 × (37 + 4)
23 = 3/10 × 41 ✓