List of top Quantitative Aptitude Questions on Ratio and Proportion asked in BHU PET

The salaries of A, B, and C are of ratio 2 : 3 : 5. If the increments of 15%, 10%, and 20% are done to their respective salaries, then find the new ratio of their salaries.
Sachin is younger than Rahul by 7 years. If the ratio of their ages is 7:9 respectively, find the age of Sachin:
If \( a : b = 2 : 3 \) and \( b : c = 4 : 3 \), then find \( a : b : c \):
The ratio of copper and zinc in an alloy is 5:3. If the weight of the copper in the alloy is 30.5 grams, then the weight of zinc in the alloy is:
100 persons had food provision for 24 days. If 20 persons left the place, the provision will last for: