Aptitude Logical Reasoning Ratio and Proportion 2020 IBPS SO Part 9
Glide to success with Doorsteptutor material for CAT : fully solved questions with step-by-step explanation- practice your way to success.
1. The ratio of the number of boys and girls in a college is . If the percentage increase in the number of boys and girls be and respectively. What will be the new ratio?
A.
B.
C.
D. Cannot be determined
Answer: C
2. A sum of money is to be distributed among A, B, C, D in the proportion of . If C gets Rs. 1000 more than D, what is B's share?
A. Rs. 500
B. Rs. 1500
C. Rs. 2000
D. None of these
Answer: C
3. If of a number is equal to two-third of another number, what is the ratio of first number to the second number?
A.
B.
C.
D.
Answer: C
4. Ratio of the earnings of A and B is . If the earnings of A increases by and those of B decreased by , the new ratio of their earnings becomes . What are A's earnings?
A. Rs. 21,000
B. Rs. 26,000
C. Rs. 28,000
D. Data inadequate
Answer: D
5. The fourth proportional to 5, 8, 15 is:
A. 18
B. 24
C. 19
D. 20
E. 21
Answer: B
6. x varies inversely as square of y. Given that for . The value of x for will be equal to:
A. 3
B. 9
C.
D.
Answer: D
7. If of of y, then is equal to:
A.
B.
C.
D.
Answer: B
8. The salaries A, B, C are in the ratio . If the increments of , and are allowed respectively in their salaries, then what will be new ratio of their salaries?
A.
B.
C.
D. Cannot be determined
Answer: C
9. If of a number is equal to two-third of another number, what is the ratio of first number to the second number?
A.
B.
C.
D.
Answer: C
10. The fourth proportional to 5, 8, 15 is:
A. 18
B. 24
C. 19
D. 20
Answer: B
11. Two number are in the ratio . If 9 is subtracted from each, the new numbers are in the ratio . The smaller number is:
A. 27
B. 33
C. 49
D. 55
Answer: B
12. In a bag, there are coins of 25 p, 10 p and 5 p in the ratio of . If there is Rs. 30 in all, how many 5 p coins are there?
A. 50
B. 100
C. 150
D. 200
Answer: C