Ratio and Proportion Questions and Answers Aptitude Problems
Ratio and Proportion Questions and Answers for Competitive Exams
Q.71 Salaries of Ravi and Sumit are in the ratio 2 : 3. If the salary of each is increased by Rs. 4000, 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
Ans . D
Q.72 The sum of three numbers is 98. If the ratio of the first to second is 2 :3 and that of the second to the third is 5 : 8, then the second number is:
(A) 20
(B) 30
(C)48
(D) 58
Ans . B
Q.73 Vinod have 20 rupees. He bought 1, 2, 5 rupee stamps. They are different in numbers by the reason of no change, the shop keeper gives 3 one rupee stamps. So how many stamps Vinod have ?
(A) 10
(B) 18
(C) 12
(D) 15
Ans . A
Q.74 There are two containers, the first one contains 1 litre pure water and the second one contains 1 litre pure milk. Now 5 cups of water from the first container is taken out is mixed well in the second container. Then, 5 cups of this mixture is taken out and is mixed in the first container. Let A denote the proportion of milk in the first container and B denote the proportion of water in the second container then:
(A) A
(B) A=B
(C) A>B
(D) can't be determined
Ans . B
Q.75 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 : 9
(B) 17 : 18
(C)21 : 22
(D) Cannot be determined
Ans . C
Q.76 If 0.75 : x :: 5 : 8, then x is equal to:
(A) 1.12
(B) 1.2
(C)1.25
(D) 1.5
Ans . B
Q.77 If Rs. 782 be divided into three parts, proportional to : : , then the first part is:
(A) Rs. 182
(B) Rs. 190
(C)Rs. 196
(D) Rs. 204
Ans . D
Q.78 A mixture contains alcohol and water in the ratio 4:3. If 5 liters of water is added to the mixture, the ratio becomes 4:5. Find the quantity of alcohol in the given mixture.
(A) 8 Liters
(B) 10 Liters
(C) 18 Liters
(D) 22 Liters
Ans . B
Q.79 The incomes of two persons A and B are in the ratio 3 : 4. If each saves Rs.100 per month, the ratio of their expenditures is Rs. 1 : 2. Find their incomes.
(A) Rs. 100 and Rs.150
(B) Rs. 150 and Rs.200
(C) Rs.200 and Rs.250
(D) Rs.250 and Rs.300
Ans . B
Q.80 Three cats are roaming in a zoo n such a way that when cat A takes 5 steps, B takes 6 steps and C takes 7 steps.But the 6 steps of A are equal to the 7 steps of B and 8 steps of C. what is the ratio of their speeds?
(A) 140:144:147
(B) 40:44:47
(C) 15:21:28
(D) 252:245:240
Ans . A
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