Please answer this question i will mark you as a brainlist.
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Answer:
The number of articles is 320.
Step-by-step explanation:
Suppose, the number of articles be x.
CP of 10 articles is ₹8.
CP of 1 article is ₹8/10 = ₹4/5
CP of x articles is ₹4/5 × x = ₹4x/5.
SP of 8 articles is ₹ 10.
SP of 1 article is ₹10/8 = ₹5/4
SP of x articles is ₹5/4 × x = ₹5x/4
Gain = ₹144
According to the question,
5x/4 - 4x/5 = 144
25x/20 - 16x/20 = 144
25x-16x/20 = 144
9x/20 = 144
9x = 144×20
x = 2880/9
x = 320
The number of articles is 320.
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