For integers a, b and c, if HCF(a, b) = 1 and HCF(a, bc) = 1, then which one of the following is correct?
HCF(b, c) = a
HCF(a, bc) = a
HCF(a, bc) = b
None of the above
For election to the Lok Sabha, a nomination paper can be filed by
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Which among the following events happened earliest ?
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An 80-litre solution of alcohol and water has 75% alcohol. How much water (in litres) must be added to bring down the concentration of alcohol to 60%?
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