IMO Level 1- Mathematics Olympiad (SOF) Class 7: Questions 822 - 824 of 1022

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Question number: 822

» Perimeter and Area

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MCQ▾

Question

The lengths of the sides of a triangle are 60 dm, 0.8 decameter and 10 m. Then its area is ________.

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 823

» Perimeter and Area

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MCQ▾

Question

Calculate the area of the shaded region of the following figure. ABCD is a rectangle having length 30 cm, breadth 20 cm. E, F and G are midpoints of AB, CD and AD respectively.

Image of a rectangle having some shaded part in it

Image of a Rectangle Having Some Shaded Part in It

Showing an image of a rectangle having some shaded part in it, so find the area of the shaded region

Choices

Choice (4) Response

a.

b.

c.

d.

Question number: 824

» Logical and Analytical Reasoning

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MCQ▾

Question

In the following diagram, if ○ represents people who like mathematics, represents people who like science and ▭ represent people who like history, then answer the following question.

How many people like science and history both?

Polygon poly1 Polygon poly1: Polygon [C, D, 3] Polygon poly1 Polygon poly1: Polygon [C, D, 3] Quadrilateral poly2 Quadrilateral poly2: Polygon F, G, H, I Circle c Circle c: Circle through B with center A Segment f Segment f: Segment [C, D] of Polygon poly1 Segment g Segment g: Segment [D, E] of Polygon poly1 Segment h Segment h: Segment [E, C] of Polygon poly1 Segment f_1 Segment f_1: Segment [F, G] of Quadrilateral poly2 Segment g_1 Segment g_1: Segment [G, H] of Quadrilateral poly2 Segment h_1 Segment h_1: Segment [H, I] of Quadrilateral poly2 Segment i Segment i: Segment [I, F] of Quadrilateral poly2 Mathematics text1 = “Mathematics” Science text1_1 = “Science” History text1_2 = “History” 9 text1_3 = “9” 4 text1_4 = “4” 6 text1_5 = “6” 3 text1_6 = “3” 8 text1_7 = “8” 5 text1_8 = “5” 1 text1_9 = “1”

Image of Triangle, Circle and Rectangle

Showing image of circle, triangle and rectangle that represent subjects

Choices

Choice (4) Response

a.

3

b.

5

c.

9

d.

8