Ratio and Proportion Questions and Answers Aptitude Problems
Ratio and Proportion Questions and Answers:
Q.11 Two numbers are in the ratio 3 : 4 and the product of their LCM and HCF is 10800. The sum of the numbers is……
(A) 180
(B) 210
(C) 225
(D) 240
Ans . B
Q. 12 The ages of x and y are in the ratio of 3 : 1. 15 years hence, the ratio will be 2 : 1. Their present ages (in years) are…..
(A) 30, 10
(B) 45, 15
(C) 21, 7
(D) 60, 20
Ans . B
To know more about Input and Output System: input-and-output-system-objective-type-question-for-competitive-exams-part-c
Q.13 Gold is 19 times as heavy as water and copper is 9 times as heavy as water. In what ratio should there be mixed to get 15 times as heavy as water.
(A) 1 : 1
(B) 2 : 3
(C) 1 : 2
(D) 3 : 2
Ans . D
Q.14 85 liters of a mixture contains milk and water in the ratio 27 : 7. How much water is to be added to get a new mixture containing milk and water in the ratio 3 :1?
(A) 5 lt
(B) 6.5 lt
(C) 7.25 lt
(D) 8 lt
Ans . A
Q.15 A and B are two alloys of gold and copper prepared by mixing metals in the ratio 7 : 2 and 7 : 11 respectively. If equal quantities of the alloys are melted to form a third alloy C, then ratio of gold and copper in C will be….
(A) 5 : 9
(B) 5 : 7
© 7 : 5
(D) 9 : 5
Ans . C
Q.16 A mixture contains milk and water in the ratio 5 : 1. On adding 5 liters of water, the ratio of milk to water becomes 5 : 2. The quantity of milk in the original mixture is….
(A) 16 lt.
(B) 25 lt.
(C) 22.75 lt.
(D) 32.5 lt.
Ans . B
Q.17 The LCM and HCF of two numbers x and y are l and h respectively. Then….
(A) l : h = x : y
(B) x : h = l : y
(C) x : l = y : h
(D) x : h = y : l
Ans . B
Q. 18 If a + b : b + c : c + a = 6 : 7 : 8 and a +b +c = 14, then the value of c is…..
(A) 6
(B) 7
(C) 8
(D) 14
Ans . A
Q.19 Which of the following is greatest 3 : 4, 5 : 6, 6 : 7, 4 : 5?
(A) 3 : 4
(B) 4 : 5
(C) 5 : 6
(D) 6 : 7
Ans . D
Q.20 The ratio between the numbers is 3 : 4 and the sum of their squares is 625. The numbers are……
(A) 6, 8
(B) 15, 20
(C) 18, 24
(D) 20, 25
Ans . B
About author
Rajesh Bhatia
A Writer, Teacher and GK Expert. I am an M.A. & M.Ed. in English Literature and Political Science. I am highly keen and passionate about reading Indian History. Also, I like to mentor students about how to prepare for a competitive examination. Share your concerns with me by comment box. Also, you can ask anything at linkedin.com/in/rajesh-bhatia-7395a015b/.
Read more articles