Number System (IMO- Mathematics Olympiad Class 7): Questions 38 - 44 of 81

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Question number: 38

» Number System

MCQ▾

Question

A gardener plans to plant 630 trees in 21 rows each containing the same number of trees, then how many trees will there be in each row?

Choices

Choice (4) Response
a.

3

b.

21

c.

30

d.

300

Question number: 39

» Number System

MCQ▾

Question

The sign of the product of one positive integer and one negative integer is________.

Choices

Choice (4) Response
a.

Negative

b.

Cannot be determined

c.

Positive or Negative

d.

Positive

Question number: 40

» Number System

MCQ▾

Question

What will be the sign of the product if we together multiply 200 negative integers and 12 positive integers?

Choices

Choice (4) Response
a.

Negative

b.

Data is insufficient

c.

Positive

d.

Can’t say

Question number: 41

» Number System

MCQ▾

Question

What will be the sign of the product if we together multiply 199 negative integers and 10 positive integers?

Choices

Choice (4) Response
a.

Negative

b.

Data is insufficient

c.

Positive

d.

Can’t say

Question number: 42

» Number System

MCQ▾

Question

The value of X in 15×(3+(2))=(2×4+(3))X , is________.

Choices

Choice (4) Response
a.

2

b.

1

c.

3

d.

2

Question number: 43

» Number System

MCQ▾

Question

The value of [(20)×(2)×(5)]÷[(10)×(5)×(2)] is________.

Choices

Choice (4) Response
a.

4

b.

2

c.

1

d.

3

Question number: 44

» Number System

MCQ▾

Question

The difference of the sum of even numbers and sum of odd numbers between 1 and 10 is________.

Choices

Choice (4) Response
a.

3

b.

5

c.

4

d.

6

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