#### Centum Questions

6th Standard

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Maths

Time : 02:00:00 Hrs
Total Marks : 100

PART - A

10 x 1 = 10
1. 1 billion is equal to ___________

(a)

100 crore

(b)

100 million

(c)

100 lakh

(d)

10000 lakh

2. The number which on rounding off to the nearest thousand gives 11000 is

(a)

10345

(b)

10855

(c)

11799

(d)

10056

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. If Azhagan is 50 years old and his son is 10 years old then the simplest ratio between the age of Azhagan to his son is

(a)

10: 50

(b)

50: 10

(c)

5: 1

(d)

1: 5

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

(a)

$6\over 9$

(b)

$12\over 18$

(c)

$10\over 15$

(d)

$20\over 28$

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

(a)

27

(b)

49

(c)

35

(d)

14

7. A line is denoted as

(a)

AB

(b)

$\overleftarrow { AB }$

(c)

$\overrightarrow { AB }$

(d)

$\overleftrightarrow { AB }$

8. In this Figure, ∠AYZ = 45°. If point ‘A’ is shifted to point ‘B’ along the ray, then the measure of ∠BYZ is ___________
.

(a)

more than 45°

(b)

45°

(c)

Less than 45°

(d)

90°

9. A bar graph cannot be drawn using_____________.

(a)

Horizontal bars only

(b)

Vertical bars only

(c)

Both horizontal bars and vertical bars

(d)

Either horizontal bars or vertical bars.

10. The spaces between any two bars in a bar graph___________.

(a)

can be different

(b)

are the same

(c)

are not the same

(d)

all of these

11. PART - B

10 x 2 = 20
12. Observe the commas and write down the place value of 7. 567,456,345

13. The heights of five boys in class VI are 135, 141, 129, 132, 145 (in centimeters) in height. Arrange their heights as how they stand in the assembly?

14. Express the following verbal statement to algebraic statement.

15. If a person reads 20 pages of a book in 2 hours, how many pages will he read in 8 hours at the same speed?

16. The cost of 15 chairs is Rs7500. Find the number of such chairs that can be purchased for Rs12,000?

17. Which angle is equal to two-third of its supplement?

18. PART - C

10 x 3 = 30
19. The teacher forms groups of five students in a class. How many students will be there in ‘p’ groups?

20. Express the following algebraic statement to verbal statement.
x ÷ 3

21. A particular high school has 1500 students 50 teachers and 5 administrators. If the school grows to 1800 students and the ratios are maintained, then find the number of teachers and administrators.

22. The following table shows the number of tourists who visited the places in the month of May. Draw a pictograph.

 Place Mahabalipuram Vedanthangal Hogenakkal Ooty Number of Tourists 20,000 15,000 40,000 35,000

23. You have two red and two blue blocks. How many different towers can you build that are four blocks high using these blocks? List all the possibilities.

24. PART - D

8 x 5 = 40
25. Gopal is 8 years younger to Karan. If the sum of their ages is 30, how old is Karnan?

26. The. rectangles made of identical square blocks with varying lengths but having only two square blocks as width are given below.

(i) How many smallest squares are there in each of the rectangles P, Q, Rand S?
(ii) Fill in the boxes

 Rectangles P Q R S T Number of small size squares along the breadth 2 2 ? 2 2 Number of squares along the length 1 4 3 ? X Total number of squares in rectangle ? 8 ? 10 ?
27. Find the variables from the clues given below and solve the cross-word puzzle.

28. Following are the choice of sports for 20 students of class VI.

 Cricket Football Cricket Tennis Cricket Badminton Football Cricket Football Tennis Cricket Badminton Basketball Football Golf Football Hockey Football Hockey Cricket

Arrange the names of sports in a table using tally marks.

29. Mariana threw a die 40 times and noted the number appearing each time as shown below.

 1 3 5 6 6 3 5 4 1 4 2 5 3 4 6 1 5 5 6 1 1 2 2 3 5 2 4 5 5 6 5 1 6 2 3 5 2 4 1 5

Make a table. and enter the data using tally marks.
Find the number that appeared
(a) the minimum number of times
(b) the maximum number of times
(c) Find those numbers that appear an equal number of times.

30. Prepare a pictograph for the students of a class in various sections and answer the following questions

 Class Number of Students VIA 60 VIB 25 VIC 30 VID 75 VIE 20

(a) How many pictures represent students of class VI E
(b) Which section has the maximum number of students?
(c) Which section has the least number of students.

31. Total number of students of a school in different years is shown in the following table

Years Number of Students
1996 800
1997 500
1998 450
1999 600
2000 950

A) Prepare a pictograph of students using one symbol to represent 100 students and answer the following questions
(a) How many symbols represent total number of students in the year 2000?
(b) How many symbols represent total number students in the year 1997?

32. The above bar graph shows the number of students in different classes of a school. Read the graph and answer the following questions.
(a) How many students are in class X?
(b) How many students are in class VII?
(c) How many students are in class IX?