IMO Level 1- Mathematics Olympiad (SOF) Class 7: Questions 628 - 630 of 1022

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Question number: 628

» Comparing Quantities

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MCQ▾

Question

A man buys a radio for Rs. 600 and sells it at a gain of 25%. He sold the radio for ________.

Choices

Choice (4) Response

a.

Rs. 900

b.

Rs. 1000

c.

Rs. 700

d.

Rs. 750

Question number: 629

» Practical Geometry - Lines and Angles

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MCQ▾

Question

The supplement of an acute angle is ________angle.

Choices

Choice (4) Response

a.

Right

b.

Acute

c.

Obtuse

d.

A straight

Question number: 630

» Triangle and Its Properties

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MCQ▾

Question

In the figure (not drawn to scale), ABC and DEF are triangle, CA is parallel to FD and CFBE is a straight line. Find the value of .

Triangle poly1 Triangle poly1: Polygon A, B, C Triangle poly2 Triangle poly2: Polygon D, E, F Arc g Arc g: Semicircle through G and H Arc h Arc h: Semicircle through I and J Arc k Arc k: Semicircle through K and L Arc g_1 Arc g_1: Semicircle through G_1 and H_1 Segment c Segment c: Segment [A, B] of Triangle poly1 Segment a Segment a: Segment [B, C] of Triangle poly1 Segment b Segment b: Segment [C, A] of Triangle poly1 Segment f Segment f: Segment [D, E] of Triangle poly2 Segment d Segment d: Segment [E, F] of Triangle poly2 Segment e Segment e: Segment [F, D] of Triangle poly2 Vector u Vector u: Vector [O, P] Vector u Vector u: Vector [O, P] Vector u_1 Vector u_1: Vector [O_1, P_1] Vector u_1 Vector u_1: Vector [O_1, P_1] Point A A = (3.78,4.14) Point A A = (3.78,4.14) Point A A = (3.78,4.14) Point B B = (5.94,7) Point B B = (5.94,7) Point B B = (5.94,7) Point C C = (1.9,7) Point C C = (1.9,7) Point C C = (1.9,7) Point D D = (6.64,3.72) Point D D = (6.64,3.72) Point D D = (6.64,3.72) Point E E = (9.24,6.98) Point E E = (9.24,6.98) Point E E = (9.24,6.98) Point F Point F: Point on a Point F Point F: Point on a Point F Point F: Point on a y text1 = “y” x text1_1 = “x” 63â° text1_2 = “63â°” 78â° text1_3 = “78â°”

Image of Two Triangles ABC and DEF with CA∥FD

Showing the image of two triangles ABC and DEF, so find x + y.

Choices

Choice (4) Response

a.

b.

c.

d.