Question
The sum of two numbers is 126 and their HCF is 14. Total
number of such pairs of numbers is?  ÂSolution
As HCF is 14 so let numbers be 14x & 14y. It means x & y must be co-prime. Now 14x+ 14y = 126, So x + y = 9. Now pairs of (x , y) can be (1,8) , (2,7) , (3, 6) & (4,5) but (3,6) is not co-prime hence number of pairs are 3.Â
In each of the questions below four words are highlighted in the sentences. One of these four words printed in bold may be either wrongly spelt or inap...
Select the most appropriate synonym of the given word.
ACCURATE
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Branch of physics dealing with the properties of sound
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The word is no longer in use.
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