11)

What is the ratio of the mean proportional between 1.9 and 17.1 to the third proportional to 1.2 and 4.2?

SSC Selection Post Matric 2022

A)

19 : 49

B)

13 : 37

C)

17 : 87

D)

11 : 47

12)

If a : b = \(2\over3\) and b : c = \(\frac{5}{8}\), then (3a + c) : (4b - c) = ?

SSC Selection Post Matric 2022

A)

3 : 4

B)

2 : 1

C)

5 : 3

D)

3 : 2

13)

A sum of Rs. x is divided between A, B and C in the ratio \({4\over5}:{2\over3}:{\frac{3}{4}}\). If the share of B is Rs. 2,600, then what is the value of x ?

SSC Selection Post Matric 2022

A)

8,645

B)

8,515

C)

8,450

D)

8,580

14)

The incomes of A and B are in the ratio 3 ∶ 7. A and B save Rs. 3,800 and Rs.12,200, respectively. If the ratio of their expenditures is 4 ∶ 9, then what is the difference (in Rs. ) between the income of A and 40% expenditure of B?

SSC Selection Post Matric 2022

A)

7,800

B)

7,500

C)

7,200

D)

8,200

15)

What X is added to each of 7, 11, 16, 21, then the numbers so obtained in this order are in proportion. What is the value of x?

SSC Selection Post Matric 2022

A)

29

B)

21

C)

24

D)

31

16)

Six years ago, the ratio of A and B was 7 ∶ 8. After 2 years from now, the ratio of their ages will be 9 ∶ 10. What is the sum of the present ages (in years) of A and B?

SSC Selection Post Matric 2022

A)

57

B)

102

C)

72

D)

87

17)

The ratio of the number of animals in zoo A to the number of animals in zoo B is 6 ∶ 5. If zoo B has 65 animals in the beginning, how many animals must be transferred from zoo A to B so that the ratio of animals in zoo A and zoo B becomes 6 ∶ 7?

SSC Selection Post Matric 2022

A)

12

B)

11

C)

13

D)

10

18)

What is the third proportional to 12 and 54?

SSC Selection Post Matric 2022

A)

\(18 \sqrt2\)

B)

4.5

C)

243

D)

42

19)

The ratio of the incomes of A and B is 5 : 7 and their savings are ₹5,000 and ₹9,000, respectively. If the ratio of their expenditures is 3 : 4, then what is the sum of the incomes (in ₹) of A and B?

SSC Selection Post Matric 2022

A)

72,000

B)

84,000

C)

60,000

D)

96,000

20)

The ratio of the incomes of A and B is 3 : 4. The ratio of their expenditure is 7 : 10. If A and B save ₹2,500 and ₹3,000, respectively, then what is the ratio of the income of B to the combined expenditure of A and B?

SSC Selection Post Matric 2022

A)

17 : 18

B)

16 : 17

C)

11 : 13

D)

5 : 7