# MCQs : RATIO FORMULA: Mathematics MCQs

# RATIO FORMULA

**1. What is the ratio formula to find the ratio of a to b?**

A) a:b

B) b/a

C) b:a

D) a/b

**Answer: D) a/b**

**2. What is the ratio formula to find the ratio of two quantities x and y?**

A) x/y

B) y:x

C) x+y

D) x-y

**Answer: A) x/y**

**3. If the ratio of two numbers is a:b, and a+b=60, what is the value of b?**

A) 10

B) 20

C) 30

D) 40

**Answer: D) 40**

**4. If the ratio of two numbers is a:b, and a-b=20, what is the value of b?**

A) 10

B) 20

C) 30

D) 40

**Answer: B) 20**

**5. If the ratio of two numbers is 3:4, and the sum of the numbers is 35, what is the smaller number?**

A) 12

B) 15

C) 18

D) 21

**Answer: A) 12**

**6. If the ratio of two numbers is 4:7, and the larger number is 35, what is the smaller number?**

A) 16

B) 20

C) 24

D) 28

**Answer: C) 24**

**7. If the ratio of two numbers is 5:8, and the sum of the numbers is 104, what is the smaller number?**

A) 32

B) 40

C) 48

D) 56

**Answer: B) 40**

**8. If the ratio of two numbers is 6:7, and the difference between the numbers is 35, what is the smaller number?**

A) 70

B) 84

C) 90

D) 96

**Answer: B) 84**

**9. If the ratio of two numbers is 3:5, and the difference between the numbers is 8, what is the larger number?**

A) 12

B) 16

C) 20

D) 24

**Answer: C) 20**

**10. If the ratio of two numbers is 2:3, and the sum of the numbers is 45, what is the larger number?**

A) 18

B) 27

C) 36

D) 54

**Answer: D) 54**

**11. If the ratio of two numbers is 4:9, and the difference between the numbers is 20, what is the larger number?**

A) 36

B) 45

C) 54

D) 63

**Answer: D) 63**

**12. If the ratio of two numbers is 2:5, and the sum of the numbers is 105, what is the smaller number?**

A) 25

B) 30

C) 35

D) 40

**Answer: A) 25**

**13. If the ratio of two numbers is 5:6, and the difference between the numbers is 7, what is the larger number?**

A) 23

B) 28

C) 33

D) 38

**Answer: D) 38**

**14. If the ratio of two numbers is 7:8, and the sum of the numbers is 80, what is the larger number?**

A) 32

B) 40

C) 48

D) 56

**Answer: C) 48**

**15. If the ratio of two numbers is 3:8, and the difference between the numbers is 15, what is the larger number?**

A) 30

B) 45

C) 60

D) 75

**Answer: D) 75**

**16. If the ratio of two numbers is 2:3, and the difference between the numbers is 9, what is the smaller number?**

A) 6

B) 12

C) 15

D) 18

**Answer: B) 12**

**17. If the ratio of two numbers is 5:9, and the difference between the numbers is 36, what is the larger number?**

A) 72

B) 90

C) 108

D) 126

**Answer: D) 126**

**18. If the ratio of two numbers is 3:4, and the larger number is 48, what is the smaller number?**

A) 18

B) 24

C) 36

D) 42

**Answer: B) 24**

**19. If the ratio of two numbers is 4:5, and the sum of the numbers is 99, what is the smaller number?**

A) 36

B) 44

C) 55

D) 63

**Answer: A) 36**

**20. If the ratio of two numbers is 7:11, and the difference between the numbers is 33, what is the larger number?**

A) 77

B) 99

C) 121

D) 143

**Answer: C) 121**