Page 322 - Start Up Mathematics_7

(Chapter 13 Sample Test Paper 5
to 17)

Maximum marks: 25

General Instructions
1. All questions are compulsory
2. The question paper is divided into 5 sections.
(i) Section A contains 5 MCQs of 1 mark each.
(ii) Section B contains 5 True or False of 1 mark each.
(iii) Section C contains 5 Fill in the blanks of 1 mark each.
(iv) Section D contains 5 VSQ (very short questions) of 1 mark each.
(v) Section E contains 2 questions one of 2 marks and the other of 3 marks.
3. The project work given at the end of the paper is to be assessed by the teacher using his/her discretion.

Section A

1. Mark the correct alternative in each of the following. 1 M × 5 = 5 M

(a) The order of rotational symmetry of a rhombus is:
(A) 1 (B) 2 (C) 3 (D) 4

(b) The radii of two circles are in the ratio 1 : 3. The ratio of their areas is:
(A) 1 : 3 (B) 2 : 6 (C) 1 : 6 (D) 1 : 9
(c) The number of edges in a polyhedron having 12 faces and 20 vertices is:

(A) 25 (B) 28 (C) 30 (D) 32
(d) The median of the marks scored by a group of 11 students is 28. If the marks of the student who
scored the highest marks are increased by 4, then the new median is:
(A) 28 (B) 30 (C) 32 (D) 40

(e) The possibility of getting 1 head and 1 tail in a toss of 2 coins is:
1 1 3
(A) (B) (C) (D) 1
4 2 4
Section B

2. State True or False: 1 M × 5 = 5 M

(a) If one-half of a figure is the mirror image of the other, it is said to have reflection symmetry.
(b) In a bar graph, the height of the bars is proportional to the corresponding frequency.
(c) If the sides of a quadrilateral are doubled, then its perimeter becomes 4 times.

(d) The net of a solid is unique.
(e) The probability of a sure event is 0.

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