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Question
primary 5 | Maths
| Percentage
2 Answers Below
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I'm not sure if (a) is correct, if it's not correct me please! And I don't understand (b) Please help! Thank you!
1s+1b = $98
1s-1b = $34
1s = ($98+$34)÷2 = $66 (Ans)
(b)
1b = $66 - $34 = $32
1-20% = 80% = 0.8
$32÷0.8 = $40
$40-$32 = $8
$30-$8 = $22 (Ans)
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