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Question-1
The smallest number of 4 - digits exactly divisible by 12, 15, 20 and 35 is:
(A)
1,000
(B)
1,160
(C)
1,260
(D)
None of these
Question-2
Three common multiples of 18 and 6 are?
(A)
18, 9, 9
(B)
18, 36, 6
(C)
36, 54, 72
(D)
None of these
Question-3
The number which are multiples of 2 are called:
(A)
Odd
(B)
Even
(C)
Prime
(D)
Composite
Question-4
LCM of two numbers
(A)
Product of numbers ÷ their HCF
(B)
Product of numbers × their HCF
(C)
Product of numbers
(D)
None of these
Question-5
H.C.F of two Co-prime numbers is:
(A)
1
(B)
0
(C)
2
(D)
None of these
Question-6
Number of prime numbers from 1 to 50 are:
(A)
18
(B)
12
(C)
15
(D)
20
Question-7
LCM of 81, 18 and 36 is:
(A)
81
(B)
164
(C)
324
(D)
36
Question-8
The greatest number of 4-digits exactly divisible by 12,15, 20 and 35 is:
(A)
9,999
(B)
9,660
(C)
9,832
(D)
9,860
Question-9
Choose the Co-prime numbers from the following.
(A)
7 and 63
(B)
36 and 25
(C)
25 and 21
(D)
63 and 81
Question-10
Prime factors of 140 are:
(A)
2 × 2 × 7
(B)
2 × 2 × 5
(C)
2 × 2 × 5 × 7
(D)
2 × 2 × 5 × 7 × 3
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Std 5
CBSE
Practice in Related Chapters
Measurements
Mathematics In Our Daily Life
Four Operations
Large Numbers
Factors and Multiples
Fractions
Decimals
Geometry
Time
Temperature
Perimeter and Area
Volume
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