Question 1
The difference between Arthur and Stella's ages is 46 years. In 8 years, Arthur's age will be 3 times Stella's age. How old is Arthur now?
Let Stella = x = 15
Then Arthur = x + 46 = 15 + 46 = 61
Check: In 8 years, Arthur+8 = 69
3 × (Stella+8) = 3 × 23 = 69 ✓
Then Arthur = x + 46 = 15 + 46 = 61
Check: In 8 years, Arthur+8 = 69
3 × (Stella+8) = 3 × 23 = 69 ✓