What is the HCF of 16, 72 and 28 ?
(A) 3
(B) 4
(C) 2
(D) 1
The L.C.M and H.C.F of the two numbers are 84 and 21 respectively. If the numbers have a ratio of 1: 4, what is the larger number?
(A) 56
(B) 84
(C) 82
(D) 15
The LCM of two consecutive even numbers is 144, find the numbers?
(A) 16 and 18
(B) 14 and 16
(C) 18 and 20
(D) 22 and 24
What is the L.C. M of
(A)
(B)
(C)
(D) None of these
Three numbers are in the ratio of 3:5:10 and their LCM is 630. Find their HCF.
(A) 21
(B) 42
(C) 63
(D) 36
Two numbers are in the ratio 3: 4 if their LCM is 240 then smaller number will be
(A) 100
(B) 80
(C) 60
(D) 50
If (x + k ) is the common factor of x2 + ax + b and x2 + cx + d , then what is k equal to ?
(A)
(B)
(C)
(D)
The greatest number that can be subtracted from 10000 so that the remainder may be divisible by 32, 36, 48 and 54 is-
(A) 9136
(B) 9216
(C) 9316
(D) 9236
What is the highest common factor of 2x3 + x2 -x -2 and 3x3- 2x2 + x - 2 ?
(A) x – 1
(B) x + 1
(C) 2x + 1
(D) 2x – 1
The LCM of two numbers is 45 times their HCF. If one of the numbers is 125 and sum of HCF and LCM is 1150. The other numbers is-
(A) 225
(B) 235
(C) 240
(D) 250
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