CBSE Class 7 Mathematics Number Play MCQs Set 03

Question. What tool is recommended to efficiently construct an equilateral triangle with sides of 4 cm?
(a) Ruler only
(b) Compass and ruler
(c) Set square
(d) Protractor

Answer: B

Question. Kishor wants to add 5 odd numbers and get the total sum of 30. Is this possible?
(a) Yes, if the numbers are big
(b) No, because 30 is odd
(c) Yes, if one card is used twice
(d) No, because sum of 5 odd numbers is odd

Answer: D

Question. Parity of a number means the property of the number being what?
(a) Positive or Negative
(b) Prime or Composite
(c) Even or Odd
(d) Large or Small

Answer: C

Question. When you add two odd numbers together, the final result parity is?
(a) Always odd
(b) Always even
(c) Sometimes odd, sometimes even
(d) Zero

Answer: B

Question. When you add one even number and one odd number together, the final result parity is?
(a) Always even
(b) Always odd
(c) Always zero
(d) Always 10

Answer: B

Question. In constructing an equilateral triangle with side length 4 cm, what is the radius of the arcs drawn from points A and B?
(a) 2 cm
(b) 3 cm
(c) 4 cm
(d) 5 cm

Answer: C

Question. Two siblings are born exactly one year apart, so their ages are consecutive numbers. The sum of their ages must always be a/an what kind of number?
(a) Even number
(b) Odd number
(c) Prime number
(d) Consecutive number

Answer: B

Question. If we add an odd number of even numbers (like 3 even numbers), the sum will be what parity?
(a) Odd
(b) Even
(c) Cannot find
(d) Zero

Answer: B

Question. If we add an even number of odd numbers (like 4 odd numbers), the sum will be what parity?
(a) Odd
(b) Even
(c) Cannot find
(d) Prime

Answer: B

Question. What is the parity result of (Even number) minus (Even number)?
(a) Odd
(b) Even
(c) Always 1
(d) Always negative

Answer: B

Question. When constructing a triangle with side lengths 4 cm, 5 cm, and 6 cm, what is the first step?
(a) Draw an arc of 5 cm
(b) Draw a base of 4 cm
(c) Draw an angle of 60°
(d) Draw a circle of radius 6 cm

Answer: B

Question. What is the parity result of (Odd number) minus (Even number)?
(a) Even
(b) Always 0
(c) Odd
(d) Always negative

Answer: C

Question. In a grid of size 3 x 3, the total number of small squares is 9. The parity of this number is?
(a) Odd
(b) Even
(c) Prime
(d) Zero

Answer: A

Question. In a grid of size 3 x 4, the total number of small squares is 12. The parity of this number is?
(a) Odd
(b) Even
(c) Prime
(d) 1

Answer: B

Question. If a grid has dimensions 27 x 13, the total number of small squares will have what parity?
(a) Even
(b) Odd
(c) Depends on multiplication
(d) Cannot find

Answer: B

Question. What type of triangle has two sides of equal length?
(a) Equilateral
(b) Isosceles
(c) Scalene
(d) Right-angled

Answer: B

Question. If a grid has dimensions 42 x 78, the total number of small squares will have what parity?
(a) Odd
(b) Always 42
(c) Even
(d) Always 78

Answer: C

Question. If both dimensions (length and width) of a grid are odd numbers, the total number of small squares will have what parity?
(a) Always Even
(b) Always Odd
(c) Depends on addition
(d) Always Prime

Answer: B

Question. If the algebraic expression is 3n + 4, when n is 3, the value is 13. The parity is odd. If n is 8, the value is 28. The parity is?
(a) Odd
(b) Even
(c) Prime
(d) 1

Answer: B

Question. The expression that gives the nth even number is what expression?
(a) 2n
(b) 2n + 1
(c) 2n - 1
(d) 4n

Answer: A