Quiz about Ratio and Proportion

Question 1

Divide the number 140 into inversely proportional parts by the numbers $$\frac{1}{3}$$ and $$\frac{1}{4}$$ .

Accepted Answer

60,80

Answer

6,2

Answer

18,80

Answer

120,20

Question 2

If $$\frac{a}{b}=\frac{c}{d}=\frac{e}{f}=k$$ , find $$\frac{a+2c+3e}{b+2d+3f}=?$$

Accepted Answer

$$k$$

Answer

$$k^2$$

Answer

$$3k$$

Answer

$$6k$$

Question 3

if $$\frac{a}{b}=\frac{8}{3};\ \frac{b}{c}=\frac{3}{4};\ \frac{c}{d}=\frac{5}{2}$$ , find $$\frac{a^2+d^2}{2ad}=?$$

Accepted Answer

$$\frac{13}{5}$$

Answer

$$\frac{25}{4}$$

Answer

$$\frac{26}{9}$$

Answer

$$\frac{11}{4}$$

Question 4

Ages of Ulfat, Arif and Ruslan are proportional to the numbers 2, 3 and 5, respectively. Since Ulfat is 5 years younger than Arif, how old is Ruslan?

Accepted Answer

25

Answer

30

Answer

40

Answer

45

Question 5

If $$5x=3y\ and\ 2y=z$$ , which of the following is correct for $$x:y:z$$

Accepted Answer

$$3:5:10$$

Answer

2:3:5

Answer

3:5:9

Answer

1:3:5

Question 6

If 10 worker do a certain work in 35 days, find that how many days it will take to do this work for 7 workers

Accepted Answer

50

Answer

60

Answer

55

Answer

20

Question 7

Find the greatest part if 63 is divided into the ratio 2:3:4

Accepted Answer

28

Answer

20

Answer

24

Answer

36

Question 8

If $$\frac{a}{b}=\frac{c}{d}=2.\overline{3}$$ , find the value of the expression $$\frac{\sqrt[]{7}a^2+\sqrt[]{3}c^2}{\sqrt[]{7}b^2+\sqrt[]{3}d^2}$$

Accepted Answer

4

Answer

5

Answer

3

Answer

6

Question 9

Three brothers aged 8, 11, and 14 divided 66 manats money in directly proportional to their age. How many manats will the elder brother get?

Accepted Answer

28

Answer

22

Answer

16

Answer

14

Question 10

Express 0.57 in percentage

Accepted Answer

57%

Answer

5.7%

Answer

0.57%

Answer

43%

Question 11

Out of 30 students in a class, 30% are boys. How many girls are there in the class?

Accepted Answer

21

Answer

14

Answer

9

Answer

25

Question 12

What percentage of the way left, if $$\frac{3}{5}$$ of the way is traveled

Accepted Answer

40%

Answer

70%

Answer

30%

Answer

60%

Question 13

A cow gave 12,500 kg of milk with a fat content of 4% during the year. How many kilograms of fat are in this amount of milk?

Accepted Answer

500

Answer

3125

Answer

50

Answer

5000

Question 14

Find that 9 is equal to what percentage of 36

Accepted Answer

25%

Answer

50%

Answer

40%

Answer

75%

Ratio and Proportion

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