1. | If a is an odd number and b is an even number, then which of the following must be an even number ? |
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Hint
Half-n-half Clue
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2. | If f(x, y) = 2 y - x2 where x and y are real numbers, then f( f(4, 7), 7) is equal to |
| Half-n-half Clue
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3. | If a and b are both odd numbers, then which of the following must be an odd number ? |
| Half-n-half Clue
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4. | Last month, Mr. Anderson spent 5% of his salary to pay his electricity bill, 12% to pay his phone bill, and 63% for general monthly expenses. If his salary is $ 3100, then his savings last month was |
| Half-n-half Clue
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