EugeneC's answer to __cherrycola__.'s Primary 6 Maths Data Analysis Singapore question.
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a) 3 watch + 2 pen = $166
3 watch + 3 pen = $186
$186 - $166 = 1 pen = $20
5 pens = $100 (ans)
b) 1 watch = [$166-2($20)]÷3 = $42 (ans)
3 watch + 3 pen = $186
$186 - $166 = 1 pen = $20
5 pens = $100 (ans)
b) 1 watch = [$166-2($20)]÷3 = $42 (ans)
Date Posted:
4 years ago
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