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primary 6 | Maths
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This question need another answer.
Please help. Thank you!
Date Posted: 5 years ago
Views: 362
Let s be number of skirts.
Number of dresses is therefore: s+96
She sold 75% of dresses: 0.75(s+96)
She sold 60% of skirts: 0.6s
She sold 126 more dresses:
0.75(s+96) = 0.6s + 126
0.75s + 72 = 0.6s + 126
0.15s = 54
s = 360
Number of skirts :360
Number of dresses: 360+96 = 456
She sold 60% of skirts = 360*0.6 = 216
She sold 75% of dresses = 456*0.75 = 342
In total, she sold 216+342 = 558 skirts and dresses.
Number of dresses is therefore: s+96
She sold 75% of dresses: 0.75(s+96)
She sold 60% of skirts: 0.6s
She sold 126 more dresses:
0.75(s+96) = 0.6s + 126
0.75s + 72 = 0.6s + 126
0.15s = 54
s = 360
Number of skirts :360
Number of dresses: 360+96 = 456
She sold 60% of skirts = 360*0.6 = 216
She sold 75% of dresses = 456*0.75 = 342
In total, she sold 216+342 = 558 skirts and dresses.
Thank you, Mr Roland.:D Almost got misled by another tutor, Mr Jack Syahir Ezekiel's wrong workings.
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Ans: 129 Dresses, 46 Skirts
Date Posted:
5 years ago
Mr Jack Syahir Ezekiel, your answer is wrong.
Ah, snap, apologies!
There's a careless mistake on my working.
This is where I made the mistake.
15% - 126 dresses
100% - 840 dresses
Apologies once again!
This is where I made the mistake.
15% - 126 dresses
100% - 840 dresses
Apologies once again!
Still wrong. Its ok, another tutor, Mr Roland Sim has shown the correct workings already.
When you wrote '75% - 60%' ,
you have assumed that the number of skirts and dresses is the same, which is incorrect as the question already states there are 96 more dresses than skirts.
you have assumed that the number of skirts and dresses is the same, which is incorrect as the question already states there are 96 more dresses than skirts.
Thank you for clarifying my mistake J! (:
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