Mathematics Class 6th
81. The least number which is the multiple of two or more than two given number is called their
A) HCF
B) LCM
C) None of these
82. The L.C.M of 4 and 6 is ____
A) 24
B) 12
C) 48
D) 60
83. Find the greatest length of a measuring tape that can measure distances of 405 cm, 315 cm, and 390 cm completely.
A) 50 cm
B) 90 cm
C) 15 cm
D) 25 cm
84. Find the least number of student in school that be sent exactly in a groups of 15, 18, 27, 36 and 45 to visit the zoo.
A) 90
B) 70
C) 540
D) 450
85. Find the greatest length of a string that can measure completely the strings having lengths 910 cm, 945 cm, and 980 cm respectively.
A) 35 cm
B) 25 cm
C) 38 cm
D) 37 cm
86. Which of the following is not prime number.
A) 7
B) 5
C) 1
D) 0
87. Which of the following is a prime number.
A) 8
B) 4
C) 2
D) 1
88. Prime factorization of 56 is ____
A) 14 * 2^2
B) 7*2^3
C) 28 * 2
D) None of these
89. Which of the following number is not an even number.
A) 2100
B) 59372
C) 48629
D) None of thes
90. Which of the following number is divisible by 9?
A) 482763
B) 596340
C) 70539
D) None of these
91. Process of factorizing a number into prime factor is called __
A) Factorization
B) Prime factorization
C) Composite number
D) None of these
92. Zero is its own additive inverse.
A) True
B) False
93. 1 is _____
A) Integers
B) Whole number
C) Natural number
D) Both A and C
94. -6 is ___
A) Natural number
B) Whole number
C) Integers
D) None of these
95. Zero is a ____
A) Whole number
B) Integer
C) Natural number
D) Both A & B
96. Positive integer is always greater than negative integer.
A) True
B) False
97. |-5| = _____
A) -5
B) 5
C) 0
D) None of these
98. | -6| + | -5| = _____
A) -11
B) 11
C) 0
D) None of these
99. |-6| - |6| = _____
A) 12
B) -12
C) 0
D) None of these
100. (5) × (-5) ____
A) 25
B) -25
C) 0
D) None of these