Page 331 - Start Up Mathematics_7

33. A group of regular polyhedra is known as:

(a) pyramid (b) prism (c) platonic solids (d) concave polyhedrons
34. The sum of the measures of all the angles at a vertex of a regular polyhedron must be:
(a) 360° (b) less than 360° (c) more than 360° (d) 7200°

35. An icosahedron has 12 vertices and 20 equilateral triangles as faces. How many edges does it
have?
(a) 28 (b) 34 (c) 32 (d) 30

Passage-Based Questions

Passage 1

Answer the following questions on the basis of the sequence given below:
P A 2 Q E 7 L N 9 C M 4 D I 1 G H 8 F
1. Which of the following character is 5th to the right of the 12th character from the left end?
(a) D (b) L (c) H (d) 2
2. Which is the middlemost character if the series is written in the reverse order?
(a) C (b) M (c) 9 (d) N
3. Three of the following are alike in a certain way with regard to their position in the given
sequence. The one different from the others is:
(a) 2Q (b) 7L (c) 9M (d) 8F
4. The sum of the numbers in the given sequence is:

(a) 29 (b) 32 (c) 30 (d) 31

Passage 2

Read the passage and answer the following questions. English
A survey was conducted among 1,500 people of Delhi living
in a particular locality, speaking different languages as shown
in the given figure. 150° 78° 60° Punjabi
Now, answer the following questions. Hindi 42°
1. The number of people speaking Punjabi is: 30° Bengali
(a) 300 (b) 250
(c) 150 (d) 60 Urdu
2. How many people speak Hindi?
(a) 125 (b) 120 (c) 150 (d) 625

3. What percentage of people speak Urdu?
1
2
(a) 8% (b) 8 % (c) 9 % (d) 10%
3 3
4. The ratio of people speaking Urdu and Bengali is:
(a) 5 : 7 (b) 2 : 3 (c) 4 : 5 (d) 5 : 4
5. State True or False:
The number of Hindi-speaking people are more than the number of people speaking Punjabi,
Bengali and Urdu put together.

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