#### Ratio and Proportion - Important Question Paper

6th Standard

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Maths

Time : 01:00:00 Hrs
Total Marks : 50

Part A

10 x 1 = 10
1. The ratio of Rs. 1 to 20 paise is __________.

(a)

1: 5

(b)

1: 2

(c)

2: 1

(d)

5: 1

2. The ratio of 1 l to 50 ml is __________.

(a)

1 : 5

(b)

1 : 20

(c)

20 : 1

(d)

5 : 1

3. The length and breadth of a window are in 1m and 70 cm respectively. The ratio of the length to the breadth is ____________.

(a)

1 : 7

(b)

7 : 1

(c)

7 : 10

(d)

10 : 7

4. Which is not an equivalent ratio of ${16\over 24}$?

(a)

$6\over 9$

(b)

$12\over 18$

(c)

$10\over 15$

(d)

$20\over 28$

5. If Rs. 1600 is divided among A and B in the ratio 3 : 5 then, B’s share is

(a)

Rs 480

(b)

Rs 800

(c)

Rs 1000

(d)

Rs 200

6. If 7 : 5 is in proportion to x : 25, then ‘x’ is

(a)

27

(b)

49

(c)

35

(d)

14

7. If a barbie doll costs Rs. 90, then the cost of 3 such dolls is Rs. ___________.

(a)

260

(b)

270

(c)

30

(d)

93

8. If a man walks 2 k.m. in 15 minutes, then he will walk ___________ k.m. in 45 minutes.

(a)

10

(b)

8

(c)

6

(d)

12

9. Which of the following fractions is not a proper fraction?

(a)

$\frac { 1 }{ 3 }$

(b)

$\frac { 2 }{ 3 }$

(c)

$\frac { 5 }{ 10 }$

(d)

$\frac { 10 }{ 5 }$

10. The equivalent fraction of $\frac { 1 }{ 7 }$ is _____________

(a)

$\frac { 2 }{ 15 }$

(b)

$\frac { 1 }{ 49 }$

(c)

$\frac { 7 }{ 49 }$

(d)

$\frac { 100 }{ 7 }$

11. Part B

4 x 1 = 4
12. Ratio of 75 paise to Rs. 2 = __________.

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3 : 8

13. 4 : 5 = ___ : 10

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14. 6 : ___ = 1 : 2

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15. _____: 24 : : 3 : 8

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9

16. Part C

4 x 2 = 8
17. Find the simplified form of the following ratios 32 : 24

18. Find the simplified form of the following ratios 7 : 15

19. Simplify the ratio 20 : 5

20. Madhavi and Anbu bought two tables for Rs. 750 and Rs. 900 respectively. What is the ratio of the prices of tables bought by Anbu and Madhavi?

21. Part D

6 x 3 = 18
22. Which of the two ratios is larger? 1 : 2 or 2 : 1

23. Divide the numbers given below in the required ratio. 20 in the ratio 3 : 2

24. Divide the numbers given below in the required ratio. 27 in the ratio 4 : 5

25. By proportionality law, check whether 3 : 2 and 30 : 20 are in proportion.

26. Find whether 12, 24, 18, 36 in that order can be expressed as two ratios that are in proportion.

27. A heater uses 3 units of electricity in 40 minutes. How many units does it consume in 2 hours?

28. Part E

2 x 5 = 10
29. The America’s famous Golden Gate bridge is 6480 ft long with 756 ft tall towers. A model of this bridge exhibited in a fair is 60 ft long with 7 ft tall towers. Is the model in proportion to the original bridge?

30. Thirumagal's mother wears a bracelet made of 35 red beads and 30 blue beads. Thirumalgal wants to make smaller bracelets using the same two coloured beads in the same ratio. In how many different ways can she make the bracelets?