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Quantitative Aptitude

RATIO AND PROPORTION MCQs

Ratio & Proportion, Ratio, Proportion

Total Questions : 895 | Page 11 of 90 pages
Question 101. Incomes of x and y are in the ratio 4 : 3. Their expenditure are in the ratio 12 : 7. Both save Rs. 3200 at the end of the month, then the income of x is = ?
  1.    Rs. 4000
  2.    Rs. 8000
  3.    Rs. 6000
  4.    Rs. 2000
 Discuss Question
Answer: Option B. -> Rs. 8000
Question 102. If (x3 - y3) : (x2 + xy + y2) = 5 : 1 and (x2 - y2) : (x - y) = 7 : 1, then the ratio 2x : 3y equals = ?
  1.    3 : 2
  2.    2 : 3
  3.    4 : 3
  4.    4 : 1
 Discuss Question
Answer: Option D. -> 4 : 1
Question 103. In a library the ratio of story books and other books is 7 : 2 and there are 1512 story books. Due to collection of some more story books the ratio becomes 15 : 4. The number of story books collected is = ?
  1.    108
  2.    205
  3.    100
  4.    97
 Discuss Question
Answer: Option A. -> 108
Question 104. When a particular number is subtracted from each of 7, 9, 11 and 15, the resulting numbers are in proportion. The number to be subtracted is -
  1.    1
  2.    2
  3.    3
  4.    5
 Discuss Question
Answer: Option C. -> 3
Question 105. The ratio of milk to water in 80 litres of a mixture is 7 : 3. The water (in litres) to be added to it to make the ratio 2 : 1 is -
  1.    4
  2.    5
  3.    6
  4.    8
 Discuss Question
Answer: Option A. -> 4
Question 106. A mixture contains milk and water in the ratio 5 : 1. On adding 5 litres of water, the ratio of milk and water becomes 5 : 2. The quantity of milk in the mixture is = ?
  1.    16 litres
  2.    25 litres
  3.    32.5 litres
  4.    22.75 litres
 Discuss Question
Answer: Option B. -> 25 litres
Question 107. Two numbers are in the ratio of 3 : 5. If 9 is subtracted from each, they are in the ratio of 12 : 23. What is the large number?
  1.    40
  2.    45
  3.    55
  4.    60
 Discuss Question
Answer: Option C. -> 55
Question 108. The sides of a triangle are in the ratio of 7 : 9 : 12. The difference between the length of largest and smaller sides is 15 c.m. The length of the largest sides would be = ?
  1.    36 cm
  2.    12 cm
  3.    60 cm
  4.    24 cm
 Discuss Question
Answer: Option A. -> 36 cm
Question 109. The three successive angles of a cycle quadrilateral are in the ratio 1 : 3 : 4, find the measure of the fourth angle ?
  1.    72°
  2.    30°
  3.    36°
  4.    108°
 Discuss Question
Answer: Option A. -> 72°
Question 110. In a certain company, the ratio of the number of managers to the number of production - line workers is 5 to 72. If 8 additional production - line workers were to be hired, the ratio of the number of managers to the production - line workers would be 5 to 74. How many managers does the company have ?
  1.    10
  2.    20
  3.    25
  4.    30
 Discuss Question
Answer: Option B. -> 20

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