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Question-1
Four bells ring at intervals of 6, 7, 8 and 9 seconds respectively. All the bells rings together after _________ seconds.
(A)
504
(B)
516
(C)
508
(D)
512
Question-2
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-3
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-4
Successor of every even number is:
(A)
Even
(B)
Prime
(C)
Odd
(D)
None of these
Question-5
The sum of the first five multiples of 6 is:
(A)
90
(B)
60
(C)
30
(D)
120
Question-6
The greatest number that will divide 37, 50, 123 leaving remainder 1, 2 and 3 respectively is:
(A)
9
(B)
10
(C)
15
(D)
12
Question-7
A number which is a factor of every number is:
(A)
0
(B)
1
(C)
2
(D)
None of these
Question-8
Common factors of 9 and 36 are
(A)
1, 3, 6, 9
(B)
1, 4, 3, 5, 9
(C)
1, 3, 9
(D)
None of these
Question-9
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-10
H.C.F of two Co-prime numbers is:
(A)
1
(B)
0
(C)
2
(D)
None of these
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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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