CBSE Class 7 Mathematics Number Play MCQs Set I

Question. In a 3 x 3 magic square using numbers 1 to 9, why cannot the number 9 be placed in the center?
(a) It is too large to allow the magic sum of 15.
(b) It is an odd number.
(c) It must go in a corner.
(d) The total sum is only 45.

Answer: A

Question. In a 3 x 3 magic square using numbers 1 to 9, why cannot the number 1 be placed in the center?
(a) It is too small to reach the magic sum of 15.
(b) It is an odd number.
(c) It must go in a corner.
(d) It is the smallest number.

Answer: A

Question. The number that must occur exactly at the center of a 3 x 3 magic square using 1 to 9 is which number?
(a) 1
(b) 9
(c) 5
(d) 15

Answer: C

Question. Which number is divisible by both 5 and 10?
(a) 35
(b) 25
(c) 50
(d) 45

Answer: C

Question. In a 3 x 3 magic square (1-9), the numbers 1 and 9 must occur in which category of position?
(a) Corner positions
(b) Middle side positions
(c) Center position
(d) Anywhere in the grid

Answer: B

Question. If we create a magic square using the consecutive numbers 2 to 10, what number must be in the center?
(a) 5
(b) 6
(c) 10
(d) 2

Answer: B

Question. If a magic square is made using the numbers 2 to 10, this square can be created from the 1-9 magic square by performing what operation?
(a) Doubling every number.
(b) Multiplying every number by 2.
(c) Adding 1 to every number.
(d) Subtracting 1 from every number.

Answer: C

Question. If you add 1 to every number in a 3 x 3 magic square, the new magic sum changes by what amount?
(a) It stays the same
(b) It increases by 1
(c) It increases by 3
(d) It is multiplied by 3

Answer: C

Question. A number divisible by 3 and 2 is always divisible by:
(a) 5
(b) 10
(c) 6
(d) 4

Answer: C

Question. If you double every number in a magic square, the new magic sum will be what, compared to the old magic sum?
(a) It increases by 2
(b) It increases by 3
(c) It is multiplied by 2
(d) It is multiplied by 3

Answer: C

Question. Operations like addition, subtraction, multiplication, and division can be performed on a magic square to yield what?
(a) Only sometimes another magic square.
(b) Only division works.
(c) Another magic square.
(d) A different sum for rows and columns.

Answer: C

Question. For a generalized 3 x 3 magic square, if 'm' is the number in the center, the expression for the sum of any row, column, or diagonal is what?
(a) m + 15
(b) m x 3
(c) m + m
(d) 3m

Answer: D

Question. 324 is divisible by:
(a) 5
(b) 4
(c) 3 and 9
(d) 2 only

Answer: C

Question. If the center number (m) of a generalized 3 x 3 magic square is 25, the magic sum for that square will be?
(a) 25
(b) 75
(c) 50
(d) 100

Answer: B

Question. The first recorded 4 x 4 magic square in India, found in Khajuraho, is known as what?
(a) Navagraha Yantra
(b) Lo Shu Square
(c) Chautīsā Yantra
(d) Kubera Yantra

Answer: C

Question. The historical 4 x 4 magic square known as the Chautīsā Yantra has a magic sum of what value?
(a) 4
(b) 16
(c) 34
(d) 100

Answer: C

Question. A 3 x 3 magic square found on a pillar in a temple in Palani, Tamil Nadu, dates back to around which century CE?
(a) 10th century
(b) 8th century
(c) 12th century
(d) 20th century

Answer: B

Question. Which of these is not divisible by 2?
(a) 32
(b) 44
(c) 51
(d) 18

Answer: C

Question. A 3 x 3 magic square used in Indian homes and shops, associated with planets, is called what?
(a) Sun Yantra
(b) Chautīsā Yantra
(c) Navagraha Yantra
(d) Lo Shu Square

Answer: C

Question. The first magic square ever recorded, the Lo Shu Square, dates back over 2000 years to ancient times in which country?
(a) India
(b) China
(c) Japan
(d) Europe

Answer: B