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Quantitative Aptitude

RATIO AND PROPORTION MCQs

Ratio & Proportion, Ratio, Proportion

Total Questions : 895 | Page 12 of 90 pages
Question 111. What number has to be added to the terms 3 : 5 to make the ratio 5 : 6 ?
  1.    6
  2.    7
  3.    12
  4.    13
 Discuss Question
Answer: Option B. -> 7
Question 112. The ratio of the number of ladies to that of gents at a party was 3 : 2. When 20 more gents joined the party, the ratio was reversed. The number of ladies present at the party was -
  1.    16
  2.    24
  3.    32
  4.    36
 Discuss Question
Answer: Option B. -> 24
Question 113. The current ages of Sonali and Monali are in the ratio 5 : 3. Five years from now, their ages will be in the ratio 10 : 7. Then Monali's current age is = ?
  1.    3 years
  2.    5 years
  3.    9 years
  4.    15 years
 Discuss Question
Answer: Option C. -> 9 years
Question 114. If $$\frac{a}{b}{\text{ = }}\frac{c}{d}{\text{ = }}\frac{e}{f}{\text{,}}$$    then each of them is equal to = ?
  1.    $$\frac{{a + 3c + 5e}}{{b + d - f}}$$
  2.    $$\frac{{3a + 3c - 5e}}{{b + 3d - f}}$$
  3.    $$\frac{{a + c - e}}{{b + d - 5f}}$$
  4.    $$\frac{{a + 3c - 5e}}{{b + 3d - 5f}}$$
 Discuss Question
Answer: Option D. -> $$\frac{{a + 3c - 5e}}{{b + 3d - 5f}}$$
Question 115. Present ages of A and B are in the ratio 5 : 6 respectively. After seven years this ratio becomes 6 : 7. Then the present age of A in years is = ?
  1.    35 years
  2.    33 years
  3.    32 years
  4.    30 years
 Discuss Question
Answer: Option A. -> 35 years
Question 116. In a school the ratio of boys and girls is 4 : 5 respectively. When 100 girls leave the school the ratio becomes 6 : 7 respectively. How many boys are there in the school ?
  1.    1300
  2.    1500
  3.    1600
  4.    Cannot be determined
  5.    None of these
 Discuss Question
Answer: Option E. -> None of these
Question 117. One year ago the ratio of the ages of Sarika and Gouri was 3 : 4 respectively. One year hence the ratio of their ages will be 10 : 13 respectively. What is Sarika's present age ?
  1.    18 years
  2.    20 years
  3.    26 years
  4.    Cannot be determined
  5.    None of these
 Discuss Question
Answer: Option E. -> None of these
Question 118. If A varies directly proportional to C and B also varies directly proportional to C, which one of the following is not correct ?
  1.    $$\left( {A + B} \right)\alpha \,C$$
  2.    $$\left( {A - B} \right)\alpha \,\frac{1}{C}$$
  3.    $$\sqrt {AB} \,\alpha \,C$$
  4.    $$\frac{A}{B} = {\text{constant}}$$
 Discuss Question
Answer: Option B. -> $$\left( {A - B} \right)\alpha \,\frac{1}{C}$$
Question 119. Arrange the number a = $$\frac{7}{{10}},$$ b = $$\frac{5}{8},$$ c = $$\frac{2}{3}$$ in descending order = ?
  1.    a > b > c
  2.    a > c > b
  3.    b > c > a
  4.    c > b > a
 Discuss Question
Answer: Option B. -> a > c > b
Question 120. A man spends his two months income in three months time, if his monthly income is 6000 , then his annual savings is = ?
  1.    Rs. 18000
  2.    Rs. 24000
  3.    Rs. 12000
  4.    Rs. 36000
 Discuss Question
Answer: Option B. -> Rs. 24000

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