Fractions and Decimals (IMO- Mathematics Olympiad Class 5): Questions 27 - 30 of 91

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Question number: 27

» Fractions and Decimals

MCQ▾

Question

What fraction of figure is shaded and what is the difference between unshaded and shaded fraction?

A square is divided by 4 equal parts and shaded by orange.

A Square Is Divided by 4 Equal Parts and Shaded by Orange.

Showing the image of square which is divided by 4 equal parts and shaded by orange.

Choices

Choice (4) Response

a.

Equation

b.

Equation

c.

Equation

d.

Equation

Question number: 28

» Fractions and Decimals

MCQ▾

Question

The model below is orange shaded to represent the number 1.

1.

Rectangle with orange shades

Rectangle With Orange Shades

In this rectangle are orange shaded

Each of the following models is shaded to represent a decimal number.

Rectangle with orange shades and black shades

Rectangle With Orange Shades and Black Shades

In this rectangle in 1st rectangle 31 rectangle are orange shaded and 2nd rectangle 30 rectangle are orange shaded.

If the two decimals are added, what is the sum?

Choices

Choice (4) Response

a.

0.60

b.

1.45

c.

6.1

d.

4.2

Question number: 29

» Fractions and Decimals

MCQ▾

Question

I think of a decimal number. After I have subtract 2.7 from it, then multiplied by 3 and then added 0.19, I get 10.2. What is the decimal number?

Choices

Choice (4) Response

a.

18

b.

4.5

c.

18.11

d.

6.04

Question number: 30

» Fractions and Decimals

MCQ▾

Question

What mixed number represents the red shaded portion of the two models shown below?

Some Rectangles with some of them sky shaded

Some Rectangles With Some of Them Sky Shaded

Showing the Rectangles with some of them sky shaded.

Choices

Choice (4) Response

a.

Equation

b.

0

c.

1

d.

Question does not provide sufficient data or is vague

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