## COMPUTATION OF WHOLE NUMBERS MCQs

### Whole Numbers

Total Questions : 46 | Page 3 of 5 pages
Question 21. The sum (267 + 345) + 21 is same as the sum 267 + (345 + 21).
1.    True
2.    False
:
A
AssociativeProperty states: When three or more numbers are added, the sum is the same regardless of the order ofaddition. Thepropertystates that for all real numbers a, b, and c, their sum is always the same, regardless of their grouping. (a+b)+c = a+ (b+c)
So(267 + 345) + 21 and 267 + (345 + 21)will give the same result = 633.
Question 22. Which of the following numbers when represented in the form of dots will give the figure of a line, rectangle and a square?
1.    2
2.    3
3.    4
4.    5
4, when represented as four dots, can result in a line, rectangle and a square.

Every square is a rectangle.
Question 23.

Six friends went to PVR and the seats were numbered from 1 to 16. If the first person sat on the chair numbered 3 then the sixth person will be sitting on chair numbered _____. Assuming they all sit together.

1.    9
2.    8
3.    7
4.    6

As the first person is sitting on the chair numbered 3, the sixth person is five places away from the first person.
So, we need to add five places to the chair numbered 3.
∴ Sixth person will sit on the chair numbered 8.

Question 24. Is 4/5 a whole number?
1.    True
2.    False
No, 7/5 is a fractional value and the set of whole numbers does not includes fractions.
Question 25.

Is -1 a whole number?

1.    true
2.    false

Since, the whole numbers are set of real numbers that do not include negative numbers, -1 is not a whole number.

Question 26. Is 1.29 a whole number?
1.    True
2.    False

The whole numbers are set of real numbers that includes zero and all positive counting numbers. Whereas, excludes fractions, negative integers, fractions, and decimals. Hence, 1.29 being a decimal value is not a whole number.

Question 27.

Ramya wanted to arrange 90 sweets (of dimensions 1×1) in a box. She has 5 boxes of dimensions 10×9, 9×10, 5×18, 16×5 and 18×5. Among these boxes, in which box can she NOT arrange all the sweets?

1.    10×9
2.    16×5
3.    18×5
4.    5×18
The area occupied byone sweet will be1×1=1 sq units and she has to arrange 90 sweetsin the box.

Minimum space needed by Ramya to arrange all the sweets is 90 sq units.
Except for 16×5 the size of all the boxes is 90 sq units.
16×5=80 sq units so she cannot arrange all the sweetsin this box.

Question 28.

In the set of whole numbers, 1 has a predecessor. State True or False?

1.    True
2.    False

We get the predecessor of any number by reducing 1 from that
number. The predecessor of 1 is 0 and 0 lies in the number system of
whole numbers.

Question 29.

Product of two whole numbers is always a ________

1.    Natural Number
2.    Whole Number
3.    Prime Number
4.    Composite Number
Answer: Option B. -> Whole Number

Product of any two whole numbers is always a Whole Number.
For eg: If we multiply two numbers say 5 and 7, 5×7=35, 35 is also a whole number.

Question 30. The sum of any two natural numbers will be less than each of the addends individually. State True/False
1.    True
2.    False