Ratio and Proportion Formulas for Competitive Exams
Formulas for Ratio and Proportion Questions:
Here we are providing related Ratio and Proportion questions and answers based on the above formulas for your convenience and good practice will help you to improve your score by covering the maths topic. Students who understand mathematics as a very difficult subject, start their practice -
Q : The ratio of income of A, B and C is 7: 9: 12 and their expense ratio is 8: 9: 15, if the savings of A is 1/4 of its total income, then the savings of A, B and C What will be the ratio?
(A) 56 : 99: 69
(B) 99: 56 :69
(C) 69: 56:99
(D) 99: 69 : 56
Correct Answer : A
If $$ {A\over2}={B\over 3}={C\over 4}$$ then what is the value of $$ {A+B+C}\over C
(A) $$ {9\over2}$$
(B) 3
(C) $$ {4\over9}$$
(D) $$ {9\over4}$$
Correct Answer : D
If ( 2x – y): ( 5x+3y)=3 : 8 then ( x2 + y2) : ( x2 – y2)=?
(A) 257 : 255
(B) 145 : 144
(C) 144 : 143
(D) 133 : 122
Correct Answer : B
If a : b=2 : 5, b:c=4 : 7 and c : d=9 : 14, then Find out the value of a : b : c : d=?
(A) 72 : 180 : 245 : 490
(B) 72 : 180 : 315 : 490
(C) 72 : 144 : 315 : 490
(D) 36 : 180 : 315 : 490
Correct Answer : B
One number is 50% less than X and another number is 20 percent less than X. What is the ratio of both the numbers?
(A) 2 : 3
(B) 5 : 8
(C) 3 : 8
(D) 3 : 5
Correct Answer : B
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Vikram Singh
Providing knowledgable questions of Reasoning and Aptitude for the competitive exams.
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