Ratio & Proportion (SSC) (Part-3)

Total Questions: 50

11. The ratio of marks of A and B is 3 : 4 and the ratio of marks of B and C is 4 : 5. If the difference in the marks of C and A is 30, then how much marks does B get? [SSC CPO 27/06/2024 (3rd Shift)]

Correct Answer: (c) 60
Solution:

12. A sum of ₹17,600 was divided between Jeevan, Praveen and Kanan, such that the ratio of the sums received by Jeevan and Praveen was 5 : 8, while the ratio of the sums received by Praveen and Kanan was 3 : 2. How much money did Jeevan receive as his share? [SSC CPO 28/06/2024 (1st Shift)]

Correct Answer: (d) ₹4,800
Solution:

13. Find the natural number obtained when the number 13 is subtracted from the mean proportional of 75 and 12. [SSC CPO 28/06/2024 (1st Shift)]

Correct Answer: (d) 17
Solution:

14. If four distinct positive numbers, a, b, c and d, in the order given are in proportion, then which of the following options is NOT correct? [SSC CPO 28/06/2024 (2nd Shift)]

Correct Answer: (b) c, d, b and a, in the order given are in proportion.
Solution:

15. Let ‘a’ be a positive number and b = 4/a What is the mean proportional of a and b. [SSC CPO 28/06/2024 (3rd Shift)]

Correct Answer: (c) 2
Solution:

16. What is the ratio between S and T if S is 75% of T ? [SSC CPO 28/06/2024 (3rd Shift)]

Correct Answer: (d) 3 : 4
Solution:

17. In a school, the total number of boys is 20% more than the total number of girls. What is the ratio of the number of boys to that of girls in the school ? [SSC CPO 29/06/2024 (1st Shift)]

Correct Answer: (a) 6 : 5
Solution:

18. 42% of Ranita’s weekly income is equal to 56% of Bhaskar’s weekly income. If Bhaskar’s weekly income was raised by ₹ 200, while Ranita’s weekly income did not change, the ratio of the weekly incomes of Ranita and Bhaskar, respectively, would have been 5 : 4. What is Ranita’s weekly income (in ₹) ? [SSC CPO 29/06/2024 (1st Shift)]

Correct Answer: (d) 4000
Solution:

19. Swati earns a sum of ₹40,000, out of which she saves 25%. She spends the remaining amount on food and education in the ratio of 3 : 2. What is the percentage of expenditure incurred on education to her total income? [SSC CPO 29/06/2024 (2nd Shift)]

Correct Answer: (a) 30%
Solution:

20. In an educational institution, the ratio of the numbers of students in middle school and in high school, respectively, in a given year was given as 4 : 3. If there were 324 students in middle school in that year in that institution, what was the number of students in high school in the same year in that institution? [Matriculation Level 20/06/2024 (Shift - 1)]

Correct Answer: (a) 243
Solution: