If A, B and C are subsets of a Universal set, then which one of the following is not correct ?
A ∪ (B ∩ C) = (A ∪ B) ∩ (A ∪ C)
A′ ∪ (A ∪ B) = (B′ ∩ A′) ∪ A
A′ ∪ (B ∪ C) = (C′ ∩ B′) ∩ A′
(A ∩ B) ∪ C = (A ∪ C) ∩ (B ∪ C)
For election to the Lok Sabha, a nomination paper can be filed by
Miscellaneous · Easy
In a month if the seventh day is three days earlier than Saturday,then the nineteenth day of the month will be a
Miscellaneous · Easy
Which among the following events happened earliest ?
Miscellaneous · Easy
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%?
Miscellaneous · Easy