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Question

Siti had 4w pears. She ate 1 pear and gave w pears to her neighbours. Siti’s brothers then ate half of the remaining pears. How many pears had she left? Give your answer in terms of w in the simplest form.

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Answer

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After eating 1 pear and giving w pears to her neighbours,

Number of pearsĀ remain -> 4w – 1 – w = 3w – 1

Her brothers ate half of this remainder,

Number of pears left -> 1/2 (3w-1) = 3w/2 – 1/2

 

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