If f(x) = ax - b and g(x) = cx + d are such that f(g(x)) = g(f(x)), then which one of the following holds?
f(d) = g(b)
f(b) + g(d) = 0
f(a) + g(c) = 2a
f(d) + g(b) = 2d
For election to the Lok Sabha, a nomination paper can be filed by
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In a month if the seventh day is three days earlier than Saturday,then the nineteenth day of the month will be a
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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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