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Question
If 27 identical articles cost ₹ 1,890, how many articles can be bought for ₹ 1,750?
Solution
Let x number of articles be purchased in ₹1750
| Cost (₹) | 1890 | 1750 |
| No. of articles | 27 | x |
Since it is a case of direct variation
`⇒1890/27=1750/"x"`
`⇒"x"=(1750xx27)/1890`
= 25 articles
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