15-item RATIO and PROPORTION part2 | Numerical test: Civil Service Exam, AFPSAT, College Entrance

Part1:    • 15-item RATIO and PROPORTION part1 | ...  
Part3:    • 15-item RATIO and PROPORTION part3 | ...  
Part4:    • 15-item RATIO and PROPORTION part4 | ...  

5. In a mixture 60 litres, the ratio of milk and water 2 : 1. If this ratio is to be 1 : 2, then the quantity of water to be further added is:
a. 20 liters
b. 30 liters
c. 40 liters
d. 60 liters
Link:    • RATIO and Proportion | Mixture of mil...  
Same problem:    • AFCAT NUMERICAL ABILITY QUIZ: If 7 li...  

6. The ratio of the number of boys and girls in a college is 7 : 8. If the percentage increase in the number of boys and girls be 20% and 10% respectively, what will be the new ratio?
a. 8 : 09
b. 17 : 18
c. 21 : 22
d. Cannot be determined

7. Salaries of Ravi and Sumit are in the ratio 2 : 3. If the salary of each is increased by Rs4000, the new ratio becomes 40 : 57. What is Sumit's salary?
a. Rs 17,000
b. Rs 20,000
c. Rs 25,500
d. Rs 38,000

8. If 0.75 : X :: 5 : 8, then X is equal to:
a. 1.12
b. 1.2
c. 1.25
d. 1.3

Basic Ratio:
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