Number Play Class 8 MCQ
easyNumber Play Class 8 MCQ
Number Play Class 8 MCQ
Question 1.
Which of the following numbers is divisible by 11?
(a) 710098
(b) 741889
(c) 759066
(d) 771124
Solution:
(c) 759066
Question 2.
What value of k would make the number 75 k 077 divisible by 11?
(a) 0
(b) 6
(c) 8
(d) 9
Solution:
(d) 9
Question 3.
By which number would the numbers obtained as a result of the following operations are divisible?
(i) 756 - 657
(ii) 908 - 809
(iii) 921 - 129
(a) 99
(b) 22
(c) 66
(d) 33
Solution:
(a) 99
Question 4.
Which of the following options make the puzzle below true?
(a) Z = 9, Y = 6
(b) Z = 4, Y = 9
(c) Z = 4, Y = 6
(d) Z = 6, Y = 6
Solution:
(c) Z = 4, Y = 6
Question 5.
What values of A and B will make the puzzle below true?
(a) A = 9, B = 8
(b) A = 8, B = 9
(c) A = 4, B = 2
(d) A = 4, B = 2
Solution:
(b) A = 8, B = 9
Case Study
Question 1.
(a) On reversing the digits, the number 92 becomes 29. What is the difference of these numbers ?
(b) Is this number divisible by 3 ?
(c) Is this number divisible by 9 ?
(d) Is this number divisible by 2 ?
(e) Is this number divisible by 7 ?
Solution:
(a) 63
(b) Yes
(c) Yes
(d) No
(e) Yes.
Question 2.
Numbers 743, 753, 889 and 572 are written on the blackboard.
(a) What is the digital root of 743 ?
(b) What is the digital root of 753 ?
(c) What is the sum of maximum and minimum digital roots of these numbers?
(d) What is the product of the maximum and minimum digital roots of these numbers?
(e) Which two numbers have the same digital root?
Solution:
(a) 5
(b) 6
(c) 12
(d) 35
(e) 743, 572 have same digital root which is 5.