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Quantitative Aptitude

RATIO AND PROPORTION MCQs

Ratio & Proportion, Ratio, Proportion

Total Questions : 895 | Page 8 of 90 pages
Question 71.

A bag contains 50 p, 25 p and 10 p coins in the ratio 5: 9: 4, amounting to Rs. 206. Find the number of coins of 25 paisa type?

  1.    200
  2.    360
  3.    160
  4.    320
  5.    None of these
 Discuss Question
Answer: Option B. -> 360
 -  Let the number of 50 p, 25 P and 10 p coins be 5x, 9x and 4x respectively.
(5x/2)+( 9x/ 4)+(4x/10)=206
50x + 45x + 8x = 4120
103 x = 4120
x=40.
Number of 50 p coins = (5 x 40) = 200;
Number of 25 p coins = (9 x 40) = 360;
Number of 10 p coins = (4 x 40) = 160.
Question 72.

A mixture contains alcohol and water in the ratio 4 : 3. If 5 litres of water is added to the mixture, the ratio becomes 4: 5. Find the quantity of alcohol in the given mixture?

  1.    10
  2.    12
  3.    15
  4.    18
  5.    None of these
 Discuss Question
Answer: Option A. -> 10
 -  Let the quantity of alcohol and water be 4x litres and 3x litres respectively
4x/(3x+5)=4/5
20x=4(3x+5)
8x=20
x=2.5
Quantity of alcohol = (4 x 2.5) litres = 10 litres
Question 73. A sum of Rs. 53 is divided among A, B and C in such a way that A gets Rs. 7 more than what B gets and B gets Rs. 8 more than what C gets. The ratio of their share is gets. The ratio of their share is = ?
  1.    16 : 9 : 18
  2.    25 : 18 : 10
  3.    18 : 25 : 10
  4.    15 : 8 : 30
 Discuss Question
Answer: Option B. -> 25 : 18 : 10
Question 74. Rs. 1087 is divided among A, B and C such that if Rs. 10, Rs. 12 and Rs. 15 are diminished from the shares of A, B and respectively, the remainders will be in the ratio of 5, 7 and 9. What is the share of B ?
  1.    Rs. 260
  2.    Rs. 355
  3.    Rs. 362
  4.    Rs. 465
 Discuss Question
Answer: Option C. -> Rs. 362
Question 75. Two numbers x and y are in the ratio 5 : 7 and their sum is 36. Then x is -
  1.    12
  2.    15
  3.    18
  4.    19
 Discuss Question
Answer: Option B. -> 15
Question 76. Two natural numbers are in the ratio 3 : 5 and their product is 2160. The smaller of the numbers is -
  1.    12
  2.    18
  3.    24
  4.    36
 Discuss Question
Answer: Option D. -> 36
Question 77. Rs. 900 is divided among A, B, C the division is such that $$\frac{1}{2}$$ of A's money = $$\frac{1}{3}$$ of B's money = $$\frac{1}{4}$$ of C's money. Find the amount ( in rupees) received by A, B, C = ?
  1.    300, 400, 200
  2.    350, 450, 100
  3.    200, 300, 400
  4.    400, 150, 350
 Discuss Question
Answer: Option C. -> 200, 300, 400
Question 78. If Rs. 126.50 is divided among A, B and C in the ratio of 2 : 5 : 4, the share of B exceeds that of A by = ?
  1.    Rs. 36.50
  2.    Rs. 35.50
  3.    Rs. 34.50
  4.    Rs. 33.50
 Discuss Question
Answer: Option C. -> Rs. 34.50
Question 79. A sum of money is divided among A, B, C and D in the ratio of 3 : 4 : 9 : 10 respectively. If the share of C is Rs. 2580 more than the share of B, then what is the total amount A and D together ?
  1.    Rs. 5676
  2.    Rs. 6192
  3.    Rs. 6708
  4.    Rs. 7224
  5.    None of these
 Discuss Question
Answer: Option C. -> Rs. 6708
Question 80. A sum of Rs. 76 is divided among A, B and C in such a way that A gets Rs. 7 more than what B gets and B gets Rs. 6 more than what C gets. The ratio of their share is gets. The ratio of their share is = ?
  1.    19 : 24 : 33
  2.    32 : 25 : 19
  3.    32 : 24 : 20
  4.    19 : 25 : 33
 Discuss Question
Answer: Option B. -> 32 : 25 : 19

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