The H.C.F. and L.C.M. of 0.63, 1.05 and 2.1
0.20 and 6.31
0.21 and 5.30
0.21 and 6.30
1.21 and 6.50
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#  Quiz 

1
Discuss

The LCM and HCF of two numbers are 84 and 21, respectively. If the ratio of the two numbers is 1 : 4, then the larger of the two numbers is
SolutionAnswer 84 
2
Discuss

Find the greatest number that will divide 55, 127 and 175 so as to leaves the same remainder in each case
Solution 
3
Discuss

HCF of 3240, 3600 and a third number is 36 and their LCM is 2^{4}×3^{5}×5^{2}×7^{2} Then the third number is
Solution 
4
Discuss

What is the least number which when divided by 5, 6, 7 and 8 leaves a remainder 3, but when divided by 9 leaves no remainder?
Solution 
5
Discuss

Which of the following has the most number of divisors?
Solution 
6
Discuss

How many numbers are there between 2000 and 4000 which are divisible by 2,3,4 and 5?
Solution 
7
Discuss

Which of the following is a pair of coprimes?
Solution 
8
Discuss

Product of two coprime numbers is 117, then their LCM is
Solution 
9
Discuss

The greatest number which on dividing 1657 and 2037 leaves remainders 6 and 5 respectively is
Solution 
10
Discuss

(4^{61}+4^{62}+4^{63}+4^{64}) is divisible by
Solution 
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