Practice NAT questions with answers and explanations.
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The operation inside parentheses is completed first.
Then 12 ÷ 3 = 4.
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The multiplicative inverse of a nonzero fraction is its reciprocal.
Interchanging numerator and denominator gives 7/5.
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A composite number has more than two positive factors.
The number 4 has factors 1, 2, and 4.
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The positive factors of 16 are 1, 2, 4, 8, and 16.
Therefore, it has 5 positive factors.
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An odd number of presses changes the initial state to the opposite state.
Since 17 is odd, the lamp is on.
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The valid order preserves W before X before Y and Z before V.
Only W, Z, X, V, Y satisfies both chains.
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Those liking at least one are 60 + 50 - 20 = 90.
Therefore, 100 - 90 = 10 like neither.
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One switch leaves the bulb warm, one leaves it lit, and one leaves it cold and dark.
These three states identify all three switches in one entry.
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Of the 6 possible orders, exactly half place A before B.
The valid orders are ABC, ACB, and CAB.
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A conjunction is true only when both component statements are true.
Because Q is false, P AND Q is false.
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One hundred days leaves a remainder of 2 when divided by 7.
Two days after Tuesday is Thursday.
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Inclusive OR is true when at least one component is true.
Since Q is true, the whole statement is true.
