IMO- Mathematics Olympiad Class 6: Questions 390 - 391 of 1049

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Rs. 450.00 or

Question number: 390

» Decimals

MCQ▾

Question

Rohit had Rs. 160.35. He bought chocolates for Rs. 26.90 and wafers for Rs. 42.15. Then the balance amount left with Rohit is

Choices

Choice (4) Response

a.

Rs. 91.30

b.

Rs. 91.15

c.

Rs. 92.00

d.

Rs. 93.00

Question number: 391

» Understanding Elementary Shapes

MCQ▾

Question

In the given figure, points A, O, B are collinear and COD=900 . Find the values of y and z as shown in figure (Figure is now drawn on scale).

Arc c Arc c: Semicircle through G and HArc d Arc d: Semicircle through I and JArc e Arc e: Semicircle through K and LArc k Arc k: Semicircle through M and NLine f Line f: Line through A, BLine f Line f: Line through A, BRay g Ray g: Ray through O, CRay h Ray h: Ray through O, ERay i Ray i: Ray through O, DRay j Ray j: Ray through O, CPoint A A = (2.72, 3.06) Point A A = (2.72, 3.06) Point A A = (2.72, 3.06) Point B B = (10.36, 3.06) Point B B = (10.36, 3.06) Point B B = (10.36, 3.06) Point O Point O: Point on fPoint O Point O: Point on fPoint O Point O: Point on fPoint C C = (8.9, 5.24) Point C C = (8.9, 5.24) Point C C = (8.9, 5.24) Point E E = (8.9, 0.38) Point E E = (8.9, 0.38) Point E E = (8.9, 0.38) Point D D = (9.88, 1.7) Point D D = (9.88, 1.7) Point D D = (9.88, 1.7) 55? text1 = “55? “18? text2 = “18? “z text4 = “z”y text3 = “y”

Image of Some Lines Making Known-Unknown Angles

Showing the image of some lines making known-unknown angles then find angles y and z

Choices

Choice (4) Response

a.

1150,1280

b.

1300,1330

c.

1250,1270

d.

1050,1200

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