Multiple Choice Question (MCQ)
If a>b and c>d , which of the following must be true?
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×
ac>bd
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×
a+b>c+d
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✓
a+c>b+d
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×
a-b>c-d
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×
ad>bc
Answer
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If a, c is less than 1, A is not true
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Not true
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If a>b and c>d
Add the two inequalities, we get
a+c>b+d
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Not true
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not true