sstrike's answer to emmy :)'s Primary 6 Maths Percentage Singapore question.
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(a)
$310.30 ÷ 1.07 = $290 (Ans)
(b)
2nd pair
$180 × (1-0.3) = $126
1st pair → after 20% discount
$290 - $126 = $164
1st pair → usual price
$164 ÷ (1-0.2) = $205 (Ans)
$310.30 ÷ 1.07 = $290 (Ans)
(b)
2nd pair
$180 × (1-0.3) = $126
1st pair → after 20% discount
$290 - $126 = $164
1st pair → usual price
$164 ÷ (1-0.2) = $205 (Ans)
Date Posted:
3 years ago
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