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WorksheetsNumber Properties
Total questions: 25
Worksheet time: 27mins
The L.C.M. of two numbers is 4800 and their HCF is 160. If one of the numbers is 480, then the second number is
480
160
1600
2400
H.C.F. and L.C.M. of two numbers are 7 and 140, respectively. If the numbers are between 20 and 45, the sum of the numbers is
70
77
56
63
5
6
2
4
What is the smallest number with which 1800 must be multiplied to make it a perfect cube?
15
18
6
10
HCF of 2 numbers is 13.If these two numbers are in the ratio 15:11, then find the number.
143,195
195,143
225,121
380,121
Find the smallest three digit number that divides 229 and 568 leaving remainder 3 in each case.
126
13
113
45
If the GCD of x2-(p+4) and x2 +2x+(p-2) is x+1, then the value of p is.
(a)
The number 2594* is completely divisible by 6. The smallest value of * can be:
4
0
8
6
A number when divided by 5 leaves remainder 2. When the square of the number is divided by5, the remainder will be:
(a)
If abc4d is divisible by 4, what cannot be the value of d?
0
2
4
8
What least value must be assigned to #, so that the number 279#4423 is divided by 9?
(a)
The largest 6-digit number which is exactly divisible by 29 is
999978
999974
999945
999999
A three-digit number 4a3 is added to another three-digit number 984 to give a four digit number 13b7, which is divisible by 11. What is the value of a+b ?
(a)
What is the least number by which 16,800 must be divided to get a number which is a perfect square?
40
42
36
24
5
8
7
5
The total number of prime factors of (7 × 2)24 × (4 × 5)21 is
45
90
110
111
What is the smallest number with which 1800 must be multiplied to make it a perfect cube?
15
18
6
10
How zeros does the following product have: 1×2×3×4×⋯⋯×100
100
24
36
20
What is the highest power of 2 in the given expression (1800*25*48*212*45-2)?
11
25
17
19
What is the remainder if 221 is divided by 6?
0
2
4
1
What is the remainder of 6724 – 5424 is divided by 11?
0
1
5
9
Divide the sum of 3/5 and 8/11 by their difference.
737
773
1
24
When 235 is divided by 5, the remainder is
(a)
What is the unit digit in 2720?
0
1
7
9
Sara has 400 marble. If she gives (1/5) th of her marbles to Sam and Sam gives (3/4) th of his marbles to David, then how man marbles does Sam have left?
(a)
