Selling price = Rs \(13500\)
Loss % = \(20\%\)
Let the cost price be \(x\).
Loss = \(20\%\) of \(x\)
Cost price - Loss = Selling price
\(x-\frac{20}{100}\times x=13500\)
\(x-\frac{1}{5}x=13500\)
\(\frac{4}{5}x=13500\)
\(x= 13500\times\frac{5}{4}\)
= \(16875\)
Therefore, she bought it for Rs \(16875\).
LIST I | LIST II | ||
A. | Secular movements | I. | Price increase before Deepavali |
B. | Seasonal variations | II. | Increase in price of gold during a major war |
C. | Cyclic variations | III. | Long term trends |
D. | Irregular variations | IV. | Recurring rise and decline in production |
Match the items given in Column I with one or more items of Column II.
Column I | Column II |
(a) A plane mirror | (i) Used as a magnifying glass. |
(b) A convex mirror | (ii) Can form image of objects spread over a large area. |
(c) A convex lens | (iii) Used by dentists to see enlarged image of teeth. |
(d) A concave mirror | (iv) The image is always inverted and magnified. |
(e) A concave lens | (v) The image is erect and of the same size as the object. |
- | (vi) The image is erect and smaller in size than the object. |