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A loss of 20% gets converted into a profit of 15% when the selling price of an article is increased by Rs. 70. Find the cost price of the article = ?

1Rs. 100
2Rs. 150
3Rs. 200
4Rs. 250

Answer:- 4

Explanation:-

Solution:

$\eqalign{ & {\text{Let selling price}} = {\text{100}} \cr & \underbrace {\mathop {{\text{Loss}}}\limits_{80} \,\,\,\,\,\,\,\,\mathop {{\text{Profit}}}\limits_{115} }_{{\text{Selling price }}35} \cr & {\text{35}} \to {\text{70}} \cr & {\text{1}} \to \frac{{70}}{{35}} = 2{\text{ }} \cr & \therefore {\text{Cost price}} = 100 \times 2 \cr & \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, = {\text{Rs}}{\text{. }}200 \cr}$

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", "dateCreated": "7/24/2019 10:09:12 AM", "author": { "@type": "Person", "name": "Nitin Sir" } }, "suggestedAnswer": { "@type": "Answer", "text": "

Solution:

$\eqalign{ & {\text{Let selling price}} = {\text{100}} \cr & \underbrace {\mathop {{\text{Loss}}}\limits_{80} \,\,\,\,\,\,\,\,\mathop {{\text{Profit}}}\limits_{115} }_{{\text{Selling price }}35} \cr & {\text{35}} \to {\text{70}} \cr & {\text{1}} \to \frac{{70}}{{35}} = 2{\text{ }} \cr & \therefore {\text{Cost price}} = 100 \times 2 \cr & \,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\,\, = {\text{Rs}}{\text{. }}200 \cr}$ ", "dateCreated": "7/24/2019 10:09:12 AM" } }

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