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25 quyển vở với giá 3000 1 quyển hết số tiênf là :
25*3000=75000<đ>
mua đc số quyển vở giá 1500 1 quyển là:
75000:1500=50 quyển
đ/s ...
mình chỉ biết thế thôi
C1 Số tiền người đó đang có là : 25x3000=75000 đồng
Với số tiền đó người đó có thể mua được số quyển vở với giá 1500 đồng : 75000:1500=50 quyển
C2 Vì cùng một số tiền nên quyển vở giá 1500 đồng sẽ mua được nhiều gấp đôi quyen vo giá 3000 nên số quyển vở có thể mua với giá 1500 đồng la : 25x2=50 quyen
![](https://rs.olm.vn/images/avt/0.png?1311)
Số tiền An có là: 8000 x 15 = 120.000 (đồng)
Vậy số quyển vở Campus An mua được là: 120.000 : 12000 = 10 (quyển)
Đ/S:............
![](https://rs.olm.vn/images/avt/0.png?1311)
Số tiền Mai có là:
\(6000\cdot20=120000\left(đồng\right)\)
Giá tiền một quyển vở khi giảm giá là:
\(6000-1000=5000\left(đồng\right)\)
Với số tiền đó mai sẽ mua được số vở thực tế là:
\(120000:5000=24\left(quyển\right)\)
Đáp số: 24 quyển
![](https://rs.olm.vn/images/avt/0.png?1311)
Số tiền của người đó là:
3000 x 25 = 75 000 (đồng)
Số vở loại 1500 đồng mua được là:
75 000 : 1500 = 50 (quyển)
Đáp số: 50 quyển.
hacker is model NETWORK LOOK
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show_ads_adorg.js?pubId=249:24 A parser-blocking, cross site (i.e. different eTLD+1) script, https://serving.ad.org.vn/ads-sync.js?key=af8dc34ca64e6cc7c19e2c5975959a40&tz=7&t=1637219970208&requestUrl=https%3A%2F%2Folm.vn%2Fhoi-dap%2Ftim-kiem%3Fq%3DM%25E1%25BB%2599t%2Bng%25C6%25B0%25E1%25BB%259Di%2Bmua%2B25%2Bquy%25E1%25BB%2583n%2Bv%25E1%25BB%259F%2B%2C%2Bgi%25C3%25A1%2B3000%2B%25C4%2591%25E1%25BB%2593ng%2B1%2Bquy%25E1%25BB%2583n%2Bth%25C3%25AC%2Bv%25E1%25BB%25ABa%2Bh%25E1%25BA%25BFt%2Bs%25E1%25BB%2591%2Bti%25E1%25BB%2581n%2B%25C4%2591ang%2Bc%25C3%25B3%2B.%2BC%25C5%25A9ng%2Bv%25E1%25BB%259Bi%2Bs%25E1%25BB%2591%2Bti%25E1%25BB%2581n%2B%25C4%2591%25C3%25B3%2Bn%25E1%25BA%25BFu%2Bmua%2Bv%25E1%25BB%259F%2Bgi%25C3%25A1%2B1500%2B%25C4%2591%25E1%25BB%2593ng%2Bm%25E1%25BB%2599t%2Bquy%25E1%25BB%2583n%2Bth%25C3%25AC%2Bng%25C6%25B0%25E1%25BB%259Di%2B%25C4%2591%25C3%25B3%2Bmua%2B%25C4%2591%25C6%25B0%25E1%25BB%25A3c%2Bbao%2Bnhi%25C3%25AAu%2Bquy%25E1%25BB%2583n%2Bv%25E1%25BB%259F%3F%26id%3D599677&requestRef=https%3A%2F%2Fwww.google.com%2F&o=https%3A%2F%2Folm.vn&pageId=1637219968523&plWidth=320&dW=true&plHeight=50&dH=true&sw=1440&sh=900, is invoked via document.write. The network request for this script MAY be blocked by the browser in this or a future page load due to poor network connectivity. If blocked in this page load, it will be confirmed in a subsequent console message. See https://www.chromestatus.com/feature/5718547946799104 for more details.
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question.js?13122022:327
tim-kiem?q=Một+người+mua+25+quyển+vở+,+giá+3000+đồng+1+quyển+thì+vừa+hết+số+tiền+đang+có+.+Cũng+với+số+tiền+đó+nếu+mua+vở+giá+1500+đồng+một+quyển+thì+người+đó+mua+được+bao+nhiêu+quyển+vở?&id=599677:1 Uncaught SyntaxError: Unexpected end of JSON input
at JSON.parse (<anonymous>)
at Object.success (question.js?13122022:338)
at l (jquery.js:2)
at Object.fireWith [as resolveWith] (jquery.js:2)
at T (jquery.js:2)
at XMLHttpRequest.r (jquery.js:2)
question.js?13122022:327
tim-kiem?q=Một+người+mua+25+quyển+vở+,+giá+3000+đồng+1+quyển+thì+vừa+hết+số+tiền+đang+có+.+Cũng+với+số+tiền+đó+nếu+mua+vở+giá+1500+đồng+một+quyển+thì+người+đó+mua+được+bao+nhiêu+quyển+vở?&id=599677:1 Uncaught SyntaxError: Unexpected end of JSON input
at JSON.parse (<anonymous>)
at Object.success (question.js?13122022:338)
at l (jquery.js:2)
at Object.fireWith [as resolveWith] (jquery.js:2)
at T (jquery.js:2)
at XMLHttpRequest.r (jquery.js:2)
question.js?13122022:327
tim-kiem?q=Một+người+mua+25+quyển+vở+,+giá+3000+đồng+1+quyển+thì+vừa+hết+số+tiền+đang+có+.+Cũng+với+số+tiền+đó+nếu+mua+vở+giá+1500+đồng+một+quyển+thì+người+đó+mua+được+bao+nhiêu+quyển+vở?&id=599677:1 Uncaught SyntaxError: Unexpected end of JSON input
at JSON.parse (<anonymous>)
at Object.success (question.js?13122022:338)
at l (jquery.js:2)
at Object.fireWith [as resolveWith] (jquery.js:2)
at T (jquery.js:2)
at XMLHttpRequest.r (jquery.js:2)
question.js?13122022:327
tim-kiem?q=Một+người+mua+25+quyển+vở+,+giá+3000+đồng+1+quyển+thì+vừa+hết+số+tiền+đang+có+.+Cũng+với+số+tiền+đó+nếu+mua+vở+giá+1500+đồng+một+quyển+thì+người+đó+mua+được+bao+nhiêu+quyển+vở?&id=599677:1 Uncaught SyntaxError: Unexpected end of JSON input
at JSON.parse (<anonymous>)
at Object.success (question.js?13122022:338)
at l (jquery.js:2)
at Object.fireWith [as resolveWith] (jquery.js:2)
at T (jquery.js:2)
at XMLHttpRequest.r (jquery.js:2)
question.js?13122022:327
tim-kiem?q=Một+người+mua+25+quyển+vở+,+giá+3000+đồng+1+quyển+thì+vừa+hết+số+tiền+đang+có+.+Cũng+với+số+tiền+đó+nếu+mua+vở+giá+1500+đồng+một+quyển+thì+người+đó+mua+được+bao+nhiêu+quyển+vở?&id=599677:1 Uncaught SyntaxError: Unexpected end of JSON input
at JSON.parse (<anonymous>)
at Object.success (question.js?13122022:338)
at l (jquery.js:2)
at Object.fireWith [as resolveWith] (jquery.js:2)
at T (jquery.js:2)
at XMLHttpRequest.r (jquery.js:2)
![](https://rs.olm.vn/images/avt/0.png?1311)
Số tiền của người đó là:
3000 x 25 = 75 000 (đồng)
Số vở loại 1500 đồng mua được là:
75 000 : 1500 = 50 (quyển)
Đáp số: 50 quyển.
![](https://rs.olm.vn/images/avt/0.png?1311)
Em nói cụ thể số tiền mẹ cho để chị giúp em giải bài nhé!