IMO- Mathematics Olympiad Class 6: Questions 315 - 317 of 1049

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Question number: 315

» Decimals

MCQ▾

Question

What is the following number is standard form?

8+(23×0.1)+(187×0.01)+(211×0.001)

Choices

Choice (4) Response

a.

123.81

b.

12381

c.

1.2381

d.

12.381

Question number: 316

» Understanding Elementary Shapes

MCQ▾

Question

Find the value of x and hence, AOC,COB in the figure given where AOB=900.

Arc c Arc c: Semicircle through D and EArc d Arc d: Semicircle through F and GLine f Line f: Line through O, ALine g Line g: Line through O, BLine g Line g: Line through O, BRay h Ray h: Ray through O, CRay i Ray i: Ray through O, BSegment j Segment j: Segment [H, I] Segment k Segment k: Segment [I, J] Point O O = (9, 2) Point O O = (9, 2) Point O O = (9, 2) Point A A = (9, 5.48) Point A A = (9, 5.48) Point A A = (9, 5.48) Point B B = (5, 2) Point B B = (5, 2) Point B B = (5, 2) Point C C = (5.8, 4.68) Point C C = (5.8, 4.68) Point C C = (5.8, 4.68) (8x 1)? text1 = ” (8x 1)? “ (4x-7)? text1_1 = ” (4x-7)? “

a Geometric Figure Made by Some Lines Making Two Angles

Showing a geometric figure made by some lines making two angles

Choices

Choice (4) Response

a.

10, 350, 550

b.

8, 250, 650

c.

12, 260, 640

d.

8, 350, 550

Question number: 317

» Decimals

MCQ▾

Question

The scientific notation of 0.0000125 is ________.

Choices

Choice (4) Response

a.

0.125×104

b.

1.25×105

c.

12.5×106

d.

125×107

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