Ratio - Aptitude MCQ Questions and Solutions with Explanations Page-6 section-2

Important Theory / Shots Trick on Ratio
Section 1 Section 2 Section 3 Section 4

51.
94 is divided into two parts in such a way that fifth part of the first and the eighth part of the second are in the ratio 3 : 4. The first part is = ?

A. 30

B. 36

C. 40

D. 28

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52.
Fourth proportional to (a² - b²), (a² - ab), (a³ + b³) is

A. a - b

B. a⁴ + b⁴

C. a(a² - ab + b²)

D. a³ - a²b² + b²

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53.
The third proportional to 38 and 15 is -

A. $$\frac{{15 \times 15}}{{38}}$$

B. $$\frac{{38 \times 15}}{2}$$

C. $$\frac{{38 \times 38}}{{15}}$$

D. $$\frac{{15}}{{38 \times 38}}$$

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54.
The mean proportional between $$\left( {3 + \sqrt 2 } \right)$$ and $$\left( {12 - \sqrt {32} } \right)$$ is-

A. $$\sqrt 7 $$

B. $${\text{2}}\sqrt 7 $$

C. $${\text{6}}\sqrt 7 $$

D. $$\frac{{15 - 3\sqrt 2 }}{2}$$

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55.
If $$\frac{{3x + 5}}{{5x - 2}}{\text{ = }}\frac{2}{3}{\text{,}}$$ then the value of x is

A. 11

B. 19

C. 23

D. 7

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56.
The number to be added to each of the numbers 7, 16, 43, 79 to make the numbers in proportion is = ?

A. 2

B. 3

C. 5

D. 1

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57.
Two numbers are such that the ratio between them is 4 : 7. If each is increase by 4, the ratio become 3 : 5. The larger number is = ?

A. 36

B. 48

C. 56

D. 64

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58.
The ratio between the third proportional of 12 and 30 and mean proportional of 9 and 25 is -

A. 2 : 1

B. 5 : 1

C. 7 : 15

D. 9 : 14

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59.
The present of A, B and C are in the ratio of 8 : 14 : 22 respectively. The present ages of B, C and D are in the ratio of 21 : 33 : 44 respectively. Which of the represents the ratio of the present ages of A, B, C and D respectively?

A. 12 : 21 : 36 : 44

B. 12 : 21 : 33 : 44

C. 12 : 22 : 31 : 44

D. Cannot be determine

E. None of these

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60.
Rita invested 25% more than sunil. Sunil invested 30% less than Abhinav, who invested Rs. 6000. What is the ratio of the amount that Rita invested to the total amount by all of them together ?

A. 35 : 104

B. 13 : 29

C. 101 : 36

D. 35 : 103

E. None of these

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Ratio - Aptitude MCQ Questions and Solutions with Explanations

51. 94 is divided into two parts in such a way that fifth part of the first and the eighth part of the second are in the ratio 3 : 4. The first part is = ?

Answer & Solution

52. Fourth proportional to (a2 - b2), (a2 - ab), (a3 + b3) is

Answer & Solution

53. The third proportional to 38 and 15 is -

Answer & Solution

54. The mean proportional between $$\left( {3 + \sqrt 2 } \right)$$ and $$\left( {12 - \sqrt {32} } \right)$$ is-

Answer & Solution

55. If $$\frac{{3x + 5}}{{5x - 2}}{\text{ = }}\frac{2}{3}{\text{,}}$$ then the value of x is

Answer & Solution

56. The number to be added to each of the numbers 7, 16, 43, 79 to make the numbers in proportion is = ?

Answer & Solution

57. Two numbers are such that the ratio between them is 4 : 7. If each is increase by 4, the ratio become 3 : 5. The larger number is = ?

Answer & Solution

58. The ratio between the third proportional of 12 and 30 and mean proportional of 9 and 25 is -

Answer & Solution

59. The present of A, B and C are in the ratio of 8 : 14 : 22 respectively. The present ages of B, C and D are in the ratio of 21 : 33 : 44 respectively. Which of the represents the ratio of the present ages of A, B, C and D respectively?

Answer & Solution

60. Rita invested 25% more than sunil. Sunil invested 30% less than Abhinav, who invested Rs. 6000. What is the ratio of the amount that Rita invested to the total amount by all of them together ?

Answer & Solution

Read More Section(Ratio)

51.
94 is divided into two parts in such a way that fifth part of the first and the eighth part of the second are in the ratio 3 : 4. The first part is = ?

52.
Fourth proportional to (a² - b²), (a² - ab), (a³ + b³) is

53.
The third proportional to 38 and 15 is -

54.
The mean proportional between $$\left( {3 + \sqrt 2 } \right)$$ and $$\left( {12 - \sqrt {32} } \right)$$ is-

55.
If $$\frac{{3x + 5}}{{5x - 2}}{\text{ = }}\frac{2}{3}{\text{,}}$$ then the value of x is

56.
The number to be added to each of the numbers 7, 16, 43, 79 to make the numbers in proportion is = ?

57.
Two numbers are such that the ratio between them is 4 : 7. If each is increase by 4, the ratio become 3 : 5. The larger number is = ?

58.
The ratio between the third proportional of 12 and 30 and mean proportional of 9 and 25 is -

59.
The present of A, B and C are in the ratio of 8 : 14 : 22 respectively. The present ages of B, C and D are in the ratio of 21 : 33 : 44 respectively. Which of the represents the ratio of the present ages of A, B, C and D respectively?

60.
Rita invested 25% more than sunil. Sunil invested 30% less than Abhinav, who invested Rs. 6000. What is the ratio of the amount that Rita invested to the total amount by all of them together ?