Question

Answer 3 and 4
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Answer 1

Answer:

Step-by-step explanation:

3. cp = 7 *500 = 3500

sp = 112% * 3500

= 3920

4. suppose cp of 1 pen = 100

sp = x

Then,

8cp = 7x

800 = 7x

x = 800/7 = 114.2

therefore profit is 14.2%