Right now the ages of two cousins, Vikram and Rahul, are in the ratio 5 : 7. Six years later the ratio will be 3 : 4. What is Rahul's present age (in years)?
Competition practiceRatio, Proportion & Mixtures
A42
B30
C36
D48
Step-by-Step Solution
Let ages be 5x and 7x.(5x+6)/(7x+6)=3/4 gives 20x+24=21x+18, so x=6. Rahul = 7×6=42 years.
Answer: A) 42
Master this topic in 30 minutes a day.
Don't just memorise the answer — build a daily practice habit.